David's Astronomy Pages (Deep Sky)
Novae

This page documents observations and images of novae with discovery dates in 2016 to 2021
Novae  Name, type, discovery date, alias
Bullet Nova Cyg 2008 No. 2 - Nova (2008-04-10), V2491 Cyg
Bullet Nova Aql 2009 - Nova (2009-12-14), V1722 Aql
Bullet Nova Del 2013 - Nova (2013-08-14), V339 Del
Bullet Nova Per 2020 - Nova (2020-11-25),  V1112 Per
Bullet Nova Cas 2021 - Nova (2021-03-30), V1405 Cas  (spectra, end)
   
Bullet Extra-Galactic Nova in M31 >>   (M31 Page)
Bullet Extra-Galactic Nova in M33 >>   (M33 Page)
Bullet Extra-Galactic Nova in M101 >>  (M101 Page)

Nova Cyg 2008 No. 2 - Nova (discovered 2008-04-10), V2491 Cyg

Nova Cyg 2008 No. 2 / V2491 Cyg (Cygnus) 
Nova 'V2491 Cyg' was discovered in Cygnus by 
Koichi Nishiyama, Kurume, Fukuoka-ken, Japan, and Fujio Kabashima, Miyaki-cho, Saga-ken, Japan, 
on unfiltered CCD images taken 2008-04-10.728 UT  at magnitude 7.7 (IAU Circular No. 8934)
(AAVSO Special Notice #103)

Image below (2008-04-14.98 UT) was taken 4.25 days above discovery.
Estimated magnitude +8.5 (C)

Image
Annotated CCD Image 
20s exposure, 2x2 binning, C Filter 
2008-04-14 23:30hUT (#281142)
 
Sequence of CCD images of V2491 Cyg taken at varying dates after discovery
4.25 days (mag +8.5)

Pre-Nova (DSS image)

Image Image
3x20s exposure (average combine), 
2x2 binning, C Filter 
2008-04-14 23:48hUT (#281164-66)
DSS image
Same field of view as image to left  [ image from 
http://archive.stsci.edu/cgi-bin/dss_form
]
 
22.3 days (mag +10.8)

59.3 days (mag +14.0)

Image Image
3 x 120s exposure (average combine), 
2x2 binning, C Filter 
2008-05-03 00:56hUT (#285129-31)
3 x 120s exposure (average combine), 
2x2 binning, C Filter 
2008-06-08 23:56hUT (#290054-56)
 
71.3 days (mag +14.4)

83.3 days (mag +14.8)

Image Image
3 x 120s exposure (average combine), 
2x2 binning, C Filter 
2008-06-20 23:47hUT (#291042-44)
3 x 120s exposure (average combine), 
2x2 binning, C Filter 
2008-07-02 23:54hUT (#293040-42)
 

415 days (mag < +16 )

Pre-Nova (DSS image)

Image Image
3 x 45s exposure (average combine), 
3x23 binning, C Filter 
2009-05-31 01:02hUT (#371200-02)
12" LX200 R + ST-10XME
 DSS image
Same field of view as image to left  [ image from 
http://archive.stsci.edu/cgi-bin/dss_form
]
 
V2491 Cyg - Light Curves 
showing decline from discovery (+7.7) down to final measurement (+14.8)

Image

Image

Image

  

V2491 Cyg - Reference Stars

Image
Annotated CCD Image 
15s exposure, 2x2 binning, V Filter 
2008-04-14 23:51hUT (#281171)
 
Identification of precursor star to V2491 Cyg Nova
V2491 Cyg 
59.3 days after discovery

Pre-Nova (DSS image)

Image Image
3 x 120s exposure (average combine), 
2x2 binning, C Filter 
2008-06-08 23:56hUT (#290054-56)
DSS image
Same field of view as image to left  [ image from 
http://archive.stsci.edu/cgi-bin/dss_form
]
 

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 Nova Aql 2009 - Nova (discovered 2009-12-14), V1722 Aql

Nova Aquilae 2009 / V1722 Aql  (Aquila)  
Nova discovered by Koichi Nishiyama, & Fujio Kabashima (Japan) 
at magnitude 10.9 on 2009-12-14.40 

Image (2009-12-26.77) was taken 12.4 days after discovery.
V filter images taken at same show the nova with magnitude +12.32 

Image

Annotated CCD Image (cropped)
3 x 15sec (average combine), 2x2 binning, C Filter
2009-12-26 18:32 h UT  (#408034-42)
12" LX200R  (at f/5.7) + ST-10XME
V1722 Aql- Detail

Image

CCD Image (cropped)
Image details as above 
Alternate Black/White range
V1722 Aql- Reference Stars
C Star :  000-BJS-297 / GSC 1599:3910,  (V Mag 11.571)
K Star : 000-BJS-296  / GSC 1599:3038,   (V Mag 11.358)

V filter image showing the nova with magnitude +12.32  
(check star +11.42 vs expected value of +11.36)
Image 
Annotated CCD Image (cropped)
5s exposure, 2x2 binning, V Filter
2009-12-26 18:31 h UT  (#408036)
12" LX200R  (at f/5.7) + ST-10XME

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Nova Del 2013 - Nova (discovered 2013-08-14), V339 Del

Nova Del 2013 (Delphinus)
Nova Delphini 2013 was discovered on 2013-08-14 by Japanese observer Koichi Itagaki at magnitude +6.8. 
Koichi had imaged the same field the day before and nothing was visible at the same location.
The progenitor star was identified from archive images as being magnitude +16.9
Alias:  V339 Del
[ Nova Del 2013 Spectragraphy Presentation ]

The image below was taken 25 days after discovery when Nova Del 2013 had faded to around +7.5
The nova is the brightest object in the image.

Image
CCD Image (cropped)
5 x 5 sec exposure (average combine), 3x3 binning, C Filter
2013-09-08 22:19hUT (#546057-61)
12" LX200R  (at f/9.7) + ST-10XME
 
Nova Del 2013 - Image sequence
 from T+25d to T+810d
(SN discovery, T = 2013-08-14)
 
Nova Del 2013  - 2013-09-08 (T+25d)
taken 25 days after discovery when nova was at magnitude +7.5
Image
CCD Image (cropped)
5 x 5 sec exposure (average combine), 3x3 binning, C Filter
2013-09-08 22:19hUT (#546057-61)
12" LX200R  (at f/9.7) + ST-10XME
 
Nova Del 2013 - 2013-10-11 (T+59d)
taken 59 days after discovery when nova had faded to around +9.5
Image
CCD Image (cropped)
5 x 5 sec exposure (average combine), 3x3 binning, C Filter
2013-10-11 19:08hUT (#547165-69)
12" LX200R  (at f/9.7) + ST-10XME
 
Nova Del 2013  - 2013-10-27 (T+75d)
taken 75 days after discovery when nova had faded to around +10.5 
Image
CCD Image (cropped)
5 sec exposure (single frame), 3x3 binning, C Filter
2013-10-27 22:18hUT (#551028)
12" LX200R  (at f/9.7) + ST-10XME
 
Nova Del 2013 - 2013-11-01 (T+80s)
taken 80 days after discovery when nova had faded to around +10.6
Image
CCD Image (cropped)
4 x 5 sec exposure (average combine), 3x3 binning, C Filter
2013-11-01 19:03hUT (#552148-52)
12" LX200R  (at f/9.7) + ST-10XME
 
Nova Del 2013  - 2014-10-29 (T+441d)
taken 441 days after discovery when nova had faded to around ~ +13.1
(NB poor sky transparency)
Image
CCD Image (cropped)
5 x 5 sec exposure (average combine), 3x3 binning, C Filter
2014-10-29 00:34hUT (#566428-32)
12" LX200R  (at f/10.4) + ST-10XME
 
Nova Del 2013 - 2014-11-30 (T+474d)
taken 474 days after discovery when nova had faded to around ~ +13.1
Image
CCD Image (cropped)
5 x 5 sec exposure (average combine), 3x3 binning, C Filter
2014-11-30 21:19hUT (#572171-75)
12" LX200R  (at f/10.4) + ST-10XME
 
Nova Del 2013  - 2015-11-01 (T+810d)
taken 810 days after discovery when the nova had faded to around +13.6
Image
CCD Image (cropped)
5 x 5 sec exposure (average combine), 3x3 binning, C Filter
2015-11-01 21:22hUT (#592174-78)
12" LX200R  (at f/10.4) + ST-10XME
 

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Nova Per 2020 - Nova (discovered 2020-11-25),  V1112 Per

Nova Per 2020 (Perseus)
Nova in Perseus discovered 2020/11/25.807
discovered independently by Seiji Ueda and Stanislav Korotkiy et al
AT2020abap (Type: CV) reported 2020/11/27.230 UT by PGIR
Alias: N Per 2020 , PGIR20fbf, TCP J04291888+4354233, TCP J04291884+4354232, V1112 Per
 
Nova Per 2020 - 2020-12-20 (T+25.2d)
Nova is shown by white cross hairs.  Measured magnitude +11.3
Image
Annotated CCD Image (50% size, linear scale)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2020-12-20 23:09 UT (#840125-29)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - Sequence of Images (T+25.2  to +387.0d)
(Nova Discovery, T = 2020-11-25.807)
 
Nova Per 2020 - 2020-12-20 (T+25.2d)
Image below (2020-12-20.821) was taken 25.2 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +11.3
Image
CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2020-12-20 23:09 UT (#840125-29)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-01-02 (T+38.1d)
Image below (2021-01-02.956) was taken 38.1 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +11.4 (fading)
Image
CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-01-02 22:57 UT (#843079-83)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-01-03 (T+39.2d)
Image below (2021-01-03.986) was taken 39.2 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +10.9 (brightening !)
Image
CCD Image (100% size, linear scale, cropped)
2 x 90s exposure (average combine), 3x3 binning, C Filter
2021-01-03 23:40 UT (#844091-92)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-01-06 (T+42.1d)
Image below (2021-01-06.892) was taken 42.1 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +11.4 (fading)
Image
CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-01-06 21:24 UT (#846098-102)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-01-08 (T+44.0d)
Image below (2021-01-08.785) was taken 44.0 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +11.7 (fading)
Image
CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-01-08 18:51 UT (#847063-67)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-01-11 (T+47.1d)
Image below (2021-01-11.862) was taken 47.1 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +12.7 (fading)
Image
CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2021-01-11 20:45 UT (#848003-06)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-01-16 (T+52.0d)
Image below (2021-01-16.771) was taken 52.0 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +13.2 (fading)
Image
CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-01-16 18:35 UT (#850012-16)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-01-18 (T+53.3d)
Image below (2021-01-18.068) was taken 53.3 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +13.4 (fading)
Image
CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2021-01-18 01:43 UT (#851013-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-01-18 (T+54.2d)
Image below (2021-01-18.979) was taken 54.2 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +13.5 (fading)
Image
CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2021-01-18 23:35 UT (#852019-23)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-01-22 (T+58.0d)
Image below (2021-01-22.856) was taken 58.0 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +13.8 (fading)
Image
CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-01-22 20:38 UT (#853107-11)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-01-24 (T+59.2d)
Image below (2021-01-24.028) was taken 59.2 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +13.9 (fading)
Image
CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-01-24 00:45 UT (#854252-56)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 (CV) - 2021-01-25 (T+61.1d)
Image below (2021-01-25.874) was taken 61.1 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +14.0 (fading)
Image
CCD Image (100% size, linear scale, cropped)
2 x 90s exposure (average combine), 3x3 binning, C Filter
2021-01-25 21:06 UT (#855062-63)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-01-31 (T+67.1d)
Image below (2021-01-31.917) was taken 67.1 days after discovery of 2020abap
Nova is shown by white cross hairs.  Measured magnitude ? (fading)
Poor quality image (single frame/ bright sky background)
Image
CCD Image (100% size, linear scale, cropped)
90s exposure (single frame), 3x3 binning, C Filter
2021-01-31 22:02 UT (#856118)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-02-01 (T+68.1d)
Image below (2021-02-01.894) was taken 68.1 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +14.5 (fading)
Image
CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-02-01 21:33 UT (#857111-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-02-10 (T+77.1d)
Image below (2021-02-10.899) was taken 77.1 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +15.0 (fading)
Image
CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2021-02-10 21:40 UT (#858044-47)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-02-19 (T+85.2d)
Image below (2021-02-19.003) was taken 85.2 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +15.2 (fading)
Image
CCD Image (100% size, linear scale, cropped)
3 x 90s exposure (average combine), 3x3 binning, C Filter
2021-02-19 00:09 UT (#860033-37)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-02-22 (T+89.0d)
Image below (2021-02-22.811) was taken 89.0 days after discovery of of Nova
Nova is shown by white cross hairs.  Measured magnitude +15.3 (fading)
Image
CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-02-22 19:32 UT (#861011-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-02-25 (T+91.3d)
Image below (2021-02-25.083) was taken 91.3 days after discovery of of Nova
Nova is shown by white cross hairs.  Measured magnitude +15.2 (brightening ?)
Image
CCD Image (100% size, linear scale, cropped)
3 x 90s exposure (average combine), 3x3 binning, C Filter
2021-02-25 02:04 UT (#862012-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-02-25 (T+92.0d)
Image below (2021-02-25.840) was taken 92.0 days after discovery of of Nova
Nova is shown by white cross hairs.  Measured magnitude +15.3 (fading)
Image
CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2021-02-25 20:13 UT (#863006-09)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-02-27 (T+94.2d)
Image below (2021-02-27.988) was taken 94.2 days after discovery of of Nova
Nova is shown by white cross hairs.  Measured magnitude +15.3 (flat ?)
Image
CCD Image (100% size, linear scale, cropped)
3 x 90s exposure (average combine), 3x3 binning, C Filter
2021-02-27 23:49 UT (#865108-10)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-02-28 (T+95.0d)
Image below (2021-02-28.810) was taken 95.0 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +15.3 (flat ?)
Image
CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2021-02-28 19:30 UT (#866005-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-03-05 (T+100.0d)
Image below (2021-03-05.826) was taken 100.0 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +15.2 (brightening)
Image
CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-03-05 19:55 UT (#867004-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-03-13 (T+108.1d)
Image below (2021-03-13.888) was taken 108.1 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +14.94
Image
CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-03-13 21:23 UT (#869026-30)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-03-16 (T+111.1d)
Image below (2021-03-16.892) was taken 111.1 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +14.84
Image
CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-03-16 21:29 UT (#871031-35)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-03-22 (T+117.1d)
Image below (2021-03-22.894) was taken 117.1 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +14.7 (brightening !, near second peak)
Image
CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-03-22 21:32 UT (#874033-37)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-02-03-24 (T+119.1d)
Image below (2021-03-24.943) was taken 119.1 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +14.7 (brightening ?)
Image
CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2021-03-24 22:43 UT (#875057-61)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-03-30 (T+124.2d)
Image below (2021-03-30.006) was taken 124.2 days after discovery of Nova
Nova is shown by white cross hairs.  
Measured magnitude +14.48
Image
CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2021-03-30 00:13 UT (#877088-92)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-04-01 (T+127.1d)
Image below (2021-04-01.956) was taken 127.1 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +14.5 (brightening)
Image
CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-04-01 23:01 UT (#879062-66)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-04-11 (T+137.1d)
Image below (2021-04-11.944) was taken 137.1 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +14.25 (brightening)
Image
Annotated CCD Image (100% size, linear scale, cropped)
3 x 90s exposure (average combine), 3x3 binning, C Filter
2021-04-11 22:47 UT (#882036-38)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-04-12 (T+138.1d)
Image below (2021-04-12.901) was taken 138.1 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +14.3 (turning/flat)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-04-12 21:43 UT (#883017-21)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-04-13 (T+139.2d)
Image below (2021-04-13.981) was taken 139.2 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +14.3 (flat)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-04-13 23:38 UT (#884080-84)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-04-14 (T+140.1d)
Image below (2021-04-14.945) was taken 140.1 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +14.32 (flat)
Image
Annotated CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2021-04-14 22:47 UT (#885041-44)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-04-15 (T+141.1d)
Image below (2021-04-15.929) was taken 141.1 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +14.33 (flat)
Image
Annotated CCD Image (100% size, linear scale, cropped)
3 x 90s exposure (average combine), 3x3 binning, C Filter
2021-04-15 22:22 UT (#886032-36)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - Nova Per 2020 - 2021-04-16 (T+142.1d)
Image below (2021-04-16.934) was taken 142.1 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +14.31 (flat)
Image
Annotated CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2021-04-16 22:29 UT (#887012-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-04-21 (T+146.2d)
Image below (2021-04-21.014) was taken 146.2 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +14.0 (rising again ?)
Image
Annotated CCD Image (100% size, linear scale, cropped)
90s exposure (single frame), 3x3 binning, C Filter
2021-04-21 00:21 UT (#888038)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-04-25 (T+150.2d)
Image below (2021-04-25.019) was taken 150.2 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +13.9 (rising again ?)
Poor quality skies / low transparency
Image
Annotated CCD Image (100% size, linear scale, cropped)
2 x 90s exposure (average combine), 3x3 binning, C Filter
2021-04-25 00:31 UT (#890060-61)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-04-25 (T+151.1d)
Image below (2021-04-25.936) was taken 151.1 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +14.2 (falling)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-04-25 22:33 UT (#891030-34)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-05-05 (T+161.1d)
Image below (2021-05-05.943) was taken 161.1 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +14.3 (falling)
Image
Annotated CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2021-05-05 22:42 UT (#894019-22)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-05-06 (T+162.1d)
Image below (2021-05-06.948) was taken 162.1 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +14.35 (falling)
Image
Annotated CCD Image (100% size, linear scale, cropped)
90s exposure (single frame), 3x3 binning, C Filter
2021-05-06 22:47 UT (#895004)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-07-24 (T+241.2d)
Image below (2021-07-24.993) was taken 241.2 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +15.1 (fading)
Image
CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2021-07-24 23:56 UT (#902043-46)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-08-28 (T+275.2d)
Image below (2021-08-28.028) was taken 275.2 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +15.3 (fading)
Image
CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2021-08-28 00:46 UT (#909124-27)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-09-01 (T+279.3d)
Image below (2021-09-01.105) was taken 279.3 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +15.25 (fading)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-09-01 02:36 UT (#910120-24)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-09-07 (T+285.3d)
Image below (2021-09-07.131) was taken 285.3 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +15.3 (falling)
Image
Annotated CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2021-09-07 03:14 UT (#911125-29)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-09-08 (T+286.2d)
Image below (2021-09-08.048) was taken 286.2 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +15.35 (falling)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-09-08 01:14 UT (#912132-36)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-09-20 (T+298.3d)
Image below (2021-09-20.144) was taken 298.3 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +15.35 (falling slowly)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-09-20 03:33 UT (#914188-92)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-09-22 (T+300.2d)
Image below (2021-09-22.025) was taken 300.2 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +15.4 (falling slowly)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-09-22 00:41 UT (#915205-09)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-09-25 (T+303.4d)
Image below (2021-09-25.161) was taken 303.4 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +15.4 (falling slowly)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-09-25 03:56 UT (#916062-66)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-09-28 (T+306.3d)
Image below (2021-09-28.078) was taken 306.3 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +15.4 (flat / falling slowly)
Image
Annotated CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2021-09-28 01:58 UT (#917249-52)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-10-05 (T+313.4d)
Image below (2021-10-05.162) was taken 313.4 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +15.35 (rising again ?)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-10-05 03:58 UT (#921251-55)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-10-15 (T+323.3d)
Image below (2021-10-15.120) was taken 323.3 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +15.4 (flat / fading slowly)
Image
Annotated CCD Image (100% size, linear scale, cropped)
3 x 90s exposure (average combine), 3x3 binning, C Filter
2021-10-15 02:58 UT (#925130-33)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-10-25 (T+333.3d)
Image below (2021-10-25.063) was taken 333.3 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +15.6
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-10-25 01:36 UT (#927087-91)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-11-17 (T+356.2d)
Image below (2021-11-17.039) was taken 356.2 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +15.7 (fading)
Image
Annotated CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2021-11-17 01:01 UT (#934093-96)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-12-17 (T+387.0d)
Image below (2021-12-17.835) was taken 387.0 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +15.9 (fading)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2021-12-17 20:06 UT (#943060-64)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2021-12-28 (T+398.1d)
Image below (2021-12-28.938) was taken 398.1 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +15.95
Image
Annotated CCD Image (100% size, linear scale, cropped)
2 x 90s exposure (average combine), 3x3 binning, C Filter
2021-12-28 22:36 UT (#945065-68)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2022-01-01 (T+402.0d)
Image below (2022-01-01.811) was taken 402.0 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +16.0 (fading)
Image
Annotated CCD Image (100% size, linear scale, cropped)
2 x 90s exposure (average combine), 3x3 binning, C Filter
2022-01-01 19:32 UT (#947043-44)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2022-01-03 (T+404.1d)
I
mage below (2022-01-03.933) was taken 404.1 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +15.95 (fading)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2022-01-03 22:29 UT (#948074-78)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2022-01-17 (T+418.0d)
Image below (2022-01-17.835) was taken 418.0 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +16.03 (fading)
Image
Annotated CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2022-01-17 20:07 UT (#955007-10)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2022-01-20 (T+421.1d)
Image below (2022-01-20.889) was taken 421.1 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +15.99
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2022-01-20 21:25 UT (#956074-78)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2022-01-21 (T+422.1d)
Image below (2022-01-21.881) was taken 422.1 days after discovery of nova
Nova (fading) is shown by white cross hairs.  Measured magnitude +16.04 (fading)
Image
Annotated CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, C Filter
2022-01-21 21:14 UT (#957120-24)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2022-02-27 (T+459.1d)
Image below (2022-02-27.944) was taken 459.1 days after discovery of
Nova (fading) is shown by white cross hairs.  Measured magnitude +16.31
Image
Annotated CCD Image (100% size, linear scale, cropped)
2 x 90s exposure (average combine), 3x3 binning, C Filter
2022-02-27 22:43 UT (#978072-75)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2022-03-01 (T+461.1d)
Image below (2022-03-01.938) was taken 461.1 days after discovery of of nova
Nova (fading) is shown by white cross hairs.  Measured magnitude +16.25 (fading)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2022-03-01 22:34 UT (#980103-07)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2022-03-05 (T+465.1d)
Image below (2022-03-05.863) was taken 465.1 days after discovery of nova
Nova (fading) is shown by white cross hairs.  Measured magnitude +16.25
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2022-03-05 20:47 UT (#982050-54)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2022-03-17 (T+477.1d)
Image below (2022-03-17.924) was taken 477.1 days after discovery of nova
Nova (fading) is shown by white cross hairs.  Measured magnitude +16.37
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2022-03-17 22:16 UT (#987066-70)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2022-03-18 (T+478.2d)
Image below (2022-03-18.958) was taken 478.2 days after discovery of  nova
Nova (fading) is shown by white cross hairs.  Measured magnitude +16.45
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2022-03-18 23:03 UT (#988014-18)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2022-03-19 (T+479.1d)
Image below (2022-03-19.925) was taken 479.1 days after discovery of nova
Nova (fading) is shown by white cross hairs.  Measured magnitude +16.20
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, C Filter
2022-03-19 22:17 UT (#989026-30)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2022-08-20 (T+632.3d)
Image below (2022-08-20.080) was taken 632.3 days after discovery of nova
Nova (fading) is shown by white cross hairs.  Measured magnitude +16.83
Image
Annotated CCD Image (100% size, linear scale, cropped)
2 x 90s exposure (average combine), 3x3 binning, Clear Filter
2022-08-20 01:57 UT (#1029096-97)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2022-09-02 (T+645.3d)
Image below (2022-09-02.062) was taken 645.3 days after discovery of nova
Nova (faded but still visible) is shown by white cross hairs.  Measured magnitude +16.82
Image
Annotated CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, Clear Filter
2022-09-02 01:34 UT (#1035147-51)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2022-09-15 (T+658.3d)
Image below (2022-09-15.121) was taken 658.3 days after discovery of nova
Nova (fading) is shown by white cross hairs.  Measured magnitude +16.90
Image
Annotated CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, Clear Filter
2022-09-15 02:58 UT (#1037078-81)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2022-10-01 (T+674.3d)
Image below (2022-10-01.130) was taken 674.3 days after discovery of nova
Nova (fading) is shown by white cross hairs.  Measured magnitude +17.11
Image
Annotated CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, Clear Filter
2022-10-01 03:10 UT (#1043021-24)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2022-10-26 (T+700.1d)
Image below (2022-10-26.922) was taken 700.1 days after discovery of
Nova (fading) is shown by white cross hairs.  Measured magnitude +17.17
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, Clear Filter
2022-10-26 22:13 UT (#1049033-37)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2022-10-31 (T+704.2d)
Image below (2022-10-31.015) was taken 704.2 days after discovery of nova
Nova (fading) is shown by white cross hairs.  Measured magnitude +17.07
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, Clear Filter
2022-10-31 00:27 UT (#1051028-32)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2022-11-05 (T+709.2d)
Image below (2022-11-05.044) was taken 709.2 days after discovery of
Nova (fading) is shown by white cross hairs.  Measured magnitude +17.12
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, Clear Filter
2022-11-05 01:07 UT (#1054195-99)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2022-11-28 (T+733.1d)
Image below (2022-11-28.910) was taken 733.1 days after discovery of
Nova (fading) is shown by white cross hairs.  Measured magnitude +17.22
Image
Annotated CCD Image (100% size, linear scale, cropped)
3 x 90s exposure (average combine), 3x3 binning, Clear Filter
2022-11-28 21:54 UT (#1064196-98)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2022-12-26 (T+761.1d)
Image below (2022-12-26.881) was taken 761.1 days after discovery of nova
Nova (fading) is shown by white cross hairs.  Measured magnitude +17.37
Image
Annotated CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, Clear Filter
2022-12-26 21:13 UT (#1075284-88)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2023-09-05 (T+1013.3d)
Image below (2023-09-05.115) was taken 1013.3 days after discovery of nova
Nova (fading) is shown by white cross hairs.  Measured magnitude +17.74
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 120s exposure (average combine), 3x3 binning, Clear Filter
2023-09-05 02:51 UT (#1139170-74)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2023-09-21 (T+1029.3d)
Image below (2023-09-21.087) was taken 1029.3 days after discovery of nova
Nova (fading) is shown by white cross hairs.  Measured magnitude +17.77
Image
Annotated CCD Image (100% size, linear scale, cropped)
4 x 120s exposure (average combine), 3x3 binning, Clear Filter
2023-09-21 02:11 UT (#1147146-50)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2023-12-05 (T+1105.2d)
Image below (2023-12-05.961) was taken 1105.2 days after discovery of nova
Nova (fading) is shown by white cross hairs.  Measured magnitude +17.95
Image
Annotated CCD Image (100% size, linear scale, cropped)
4 x 120s exposure (average combine), 3x3 binning, Clear Filter
2023-12-05 23:10 UT (#1172088-92)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2024-01-06 (T+1137.1d)
Image below (2024-01-06.910) was taken 1137.1 days after discovery of nova
Nova (fading) is shown by white cross hairs.  Measured magnitude +17.80 (Clear Filter)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 120s exposure (average combine), 3x3 binning, Clear Filter
2024-01-06 21:56 UT (#1179108-12)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2024-02-21 (T+1182.2d)
Image below (2024-02-21.008) was taken 1182.2 days after discovery of nova
Nova (brightening ?) is shown by white cross hairs.  Measured magnitude +16.36* (Clear Filter)
* +16.36 is judged to be a superious value and is not consistent with the trend decline
from +17.80 in preceeding observation to +18.03 & +17.97 in the following 2 observations
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 120s exposure (average combine), 3x3 binning, Clear Filter
2024-02-21 00:18 UT (#1187107-11)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2024-02-21 (T+1183.2d)
Image below (2024-02-21.986) was taken 1183.2 days after discovery of nova
Nova (brightening ?) is shown by white cross hairs.  Measured magnitude +18.03 (Clear Filter)
Magnitude value confirms that the +16.36 measurement in previousr observation
(T+1182.2d) is very likely to be a superious reading.
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 120s exposure (average combine), 3x3 binning, Clear Filter
2024-02-21 23:46 UT (#1188114-18)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 - 2024-02-22 (T+1184.1d)
Image below (2024-02-22.908) was taken 1184.1 days after discovery of nova
Nova (very faint) is shown by white cross hairs.  Measured magnitude +17.97 (Clear Filter)
Magnitude value confirms that the +16.36 measurement in earlier observation
(T+1182.2d) is very likely to be a superious reading.
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 120s exposure (average combine), 3x3 binning, Clear Filter
2024-02-22 21:53 UT (#1189066-70)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Per 2020 (V1112 Per) Spectra (T+275.2d)
Very dim spectra, but H-beta and H-alpha emission lines are apparent
Image
CCD Image (100% size, square root scale, cropped)
4 x 60s exposure (average combine), 2x2 binning, S Filter
2021-08-28 00:52 UT (#909128-32)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
 

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Nova Cas 2021 - Nova (discovered 2021-03-30), V1405 Cas

Nova Cas 2021 (Cassiopeia)
Nova in Cassiopeia discovered 2021-03-18.4236,  by Yuji Nakamura (Japan)
Magnitude at discovery +9.6 (unfiltered CCD)
AT2021hkn (Type: Nova) reported by 2021/03/30.055 UT by Gaia
Alias: Gaia21bpe, AT2021hkn, V1405 Cas
( TNS 2021hkn | Gaia21bpe
 
Nova Cas 2021 (Cassiopeia)
Nova in Cassiopeia discovered 2021-03-18.4236,  by Yuji Nakamura (Japan)
Magnitude at discovery +9.6 (unfiltered CCD)
AT2021hkn (Type: Nova) reported by 2021/03/30.055 UT by Gaia
Alias: Gaia21bpe, AT2021hkn, V1405 Cas
Nova indicated by white cross-hairs
Image
Annotated CCD Image (50% size, linear scale)
5 x 60s exposure (average combine), 3x3 binning, C Filter
2021-08-10 01:38 UT (#904024-28)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-04-12 (T+24.7d)
Image below (2021-04-12.142) was taken 24.7 days after after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.72 
Note: star object is saturated and shows significant blooming, mag is likely to be underestimated

(linked with Detection Threshold = 50)
Image
CCD Image (100% size, linear scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-12 03:30 UT (#882048-50)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-04-13 (T+25.7d)
Image below (2021-04-13.105) was taken 14.0 days after after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.49
Note: star object is saturated and shows significant blooming, mag is likely to be underestimated

(linked with Detection Threshold = 50)
Image
CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-13 02:41 UT (#883157-61)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-04-14 (T+26.7d)
Image below (2021-04-13.105) was taken 26.7 days after after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.27
Note: star object is saturated and shows significant blooming, mag is likely to be underestimated

(linked with Detection Threshold = 50)
Image 
CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2021-04-14 02:00 UT (#884163-67)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-04-15 (T+27.7d)
Image below (2021-04-15.083) was taken 27.7 days after after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.10
Note: star object is saturated and shows some blooming, mag is probably underestimated
(linked with Detection Threshold = 50)
Image
CCD Image (100% size, linear scale, cropped)
4 x 60s exposure (average combine), 3x3 binning, C Filter
2021-04-15 02:02 UT (#885141-44)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
[ Full size image, 100% size ]
 
Nova Cas 2021 / AT2021hkn - 2021-04-16 (T+28.7d)
Image below (2021-04-16.087) was taken 28.7 days after after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.19
Note: star object is saturated and shows some blooming, mag is probably underestimated
(linked with Detection Threshold = 50, )
Image
CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, C Filter
2021-04-16 02:08 UT (#886126-30)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn -2021-04-16 (T+29.5d)
Image below (2021-04-16.925) was taken 29.5 days after after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.23
Note: star object is saturated and shows some blooming, mag is probably underestimated
(linked with Detection Threshold = 50)
Image
CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, C Filter
2021-04-16 22:16 UT (#887004-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-04-24 (T+37.5d)
Image below (2021-04-24.968) was taken 37.5 days after after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +7.99 
Note: star object is saturated and shows some blooming, mag is probably underestimated
(linked with Detection Threshold = 50)
Image 
CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, C Filter
2021-04-24 23:17 UT (#890028-32)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-04-25 (T+38.5d)
Image below (2021-04-25.946) was taken 38.5days after after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.12 
Note: star object is saturated and shows some blooming, mag is probably underestimated
(linked with Detection Threshold = 50)
Image
CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, C Filter
2021-04-25 22:45 UT (#891037-41)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-05-07 (T+49.7d)
Image below (2021-05-07.074) was taken 49.7 days after after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +7.90
Note: star object is saturated and shows significant blooming, mag is likely to be underestimated
(linked with Detection Threshold = 50)
Image
CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, C Filter
2021-05-07 01:51 UT (#895088-92)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-05-08 (T+50.6d)
Image below (2021-05-08.067) was taken 50.6 days after after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.13
Note: star object is saturated and shows significant blooming, mag is likely to be underestimated
(linked with Detection Threshold = 50)
Image
CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, C Filter
2021-05-08 01:39 UT (#896068-72)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-05-10 (T+53.5d)
Image below (2021-05-10.967) was taken 53.5 days after after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.14
Note: star object is saturated and shows significant blooming, mag is likely to be underestimated
(linked with Detection Threshold = 50)
Image
CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, C Filter
2021-05-10 23:16 UT (#897009-13)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-08-10 (T+144.6d)
Image below (2021-08-10.066) was taken 144.6 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.16
Note: star object is saturated and shows some blooming, mag is probably underestimated
(linked with Detection Threshold = 50)
Image
CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, C Filter
2021-08-10 01:38 UT (#904024-28)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-08-14 (T+148.6d)
I
mage below (2021-08-14.030) was taken 148.6 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.16
Note: star object is saturated and shows some blooming, mag is probably underestimated
(linked with Detection Threshold = 50)
Image
CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-08-14 00:45 UT (#905091-95)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-08-24 (T+158.6d)
Image below (2021-08-24.038) was taken 158.6 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.01
Note: star object is saturated and shows some blooming, mag is probably underestimated
(linked with Detection Threshold = 50)
Image
CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-08-24 00:57 UT (#907051-55)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-08-27 (T+162.6d)
Image below (2021-08-27.990) was taken 150.9 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +7.94
Note: star object is saturated and shows some blooming, mag is probably underestimated
(linked with Detection Threshold = 50)
Image
CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-08-27 23:46 UT (#909081-85)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-09-01 (T+166.7d)
Image below (2021-09-01.130) was taken 166.7 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.42
(linked with Detection Threshold = 50)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
4 x 30s exposure (average combine), 3x3 binning, C Filter
2021-09-01 03:09 UT (#910136-40)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-09-06 (T+172.6d)
Image below (2021-09-06.980) was taken 172.6 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +7.92
(linked with Detection Threshold = 50)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-09-06 23:32 UT (#911021-25)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-09-07 (T+173.5d)
Image below (2021-09-07.950) was taken 173.5 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +7.83
Note: star object is saturated and shows some blooming, mag is probably underestimated
(linked with Detection Threshold = 50)
Image
CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-09-07 22:50 UT (#912055-59)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-09-19 (T+185.5d)
Image below (2021-09-19.911) was taken 185.5 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +7.61
Note: star object is saturated and shows some blooming, mag is probably underestimated
(linked with Detection Threshold = 50)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-09-19 21:54 UT (#914005-09)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-09-22 (T+187.7d)
Image below (2021-09-22.135) was taken 187.7 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +7.74
Note: star object is saturated and shows some blooming, mag is probably underestimated
(linked with Detection Threshold = 50)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-09-22 03:15 UT (#915291-95)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-09-27 (T+193.5d)
Image below (2021-09-27.953) was taken 193.5 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +7.92
Note: star object is saturated and shows some blooming, mag is probably underestimated
(linked with Detection Threshold = 50)
Image
Annotated CCD Image (100% size, linear scale, cropped)
4 x 30s exposure (average combine), 3x3 binning, C Filter
2021-09-27 22:54 UT (#917142-46)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-09-29 (T+195.5d)
Image below (2021-09-29.948) was taken 195.5 days after after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.02
Note: star object is saturated and shows some blooming, mag is probably underestimated
(linked with Detection Threshold = 50)
Image
CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-09-29 22:47 UT (#918123-27)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-10-02 (T+197.6d)
Image below (2021-10-02.006) was taken 197.6 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.12
(linked with Detection Threshold = 50)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-10-02 00:11 UT (#919011-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-10-03 (T+199.6d)
Image below (2021-10-03.992) was taken 199.6 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +7.92
Note: star object is saturated and shows some blooming, mag is probably underestimated
(linked with Detection Threshold = 50)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-10-03 23:50 UT (#920033-37)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-10-04 (T+200.5d)
Image below (2021-10-04.957) was taken 200.5 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.01
Note: star object is saturated and shows some blooming, mag is probably underestimated
(linked with Detection Threshold = 50)
Image
Annotated CCD Image (100% size, linear scale, cropped)
4 x 30s exposure (average combine), 3x3 binning, C Filter
2021-10-04 23:00 UT (#921092-95)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-10-09 (T+205.5d)
Image below (2021-10-09.967) was taken 205.5 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.04
(linked with Detection Threshold = 50)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
30s exposure (single frame), 3x3 binning, C Filter
2021-10-09 23:13 UT (#922004)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-10-15 (T+210.6d)
Image below (2021-10-15.049) was taken 210.6 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.25
(linked with Detection Threshold = 30)
Image
Annotated CCD Image (100% size, linear scale, cropped)
4 x 30s exposure (average combine), 3x3 binning, C Filter
2021-10-15 01:12 UT (#925098-101)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-10-25 (T+220.6d)
Image below (2021-10-25.014) was taken 220.6 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.05
(linked with Detection Threshold = 50)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-10-25 00:22 UT (#927053-57)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-10-30 (T+226.6d)
Image below (2021-10-30.993) was taken 226.6 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.16
(linked with Detection Threshold = 50)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-10-30 23:51 UT (#930115-19)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-11-03 (T+230.5d)
Image below (2021-11-03.880) was taken 230.5 days after discovery of Nova
Nova is shown by white cross hairs. Measured magnitude +8.39
(linked with Detection Threshold = 50)
Image
CCD Image (100% size, linear scale, cropped)
3 x 30s exposure (average combine), 3x3 binning, C Filter
2021-11-03 21:09 UT (#931021-24)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-11-09 (T+236.4d)
Image below (2021-11-09.816) was taken 236.4 after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.42
(linked with Detection Threshold = 50)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-11-09 19:37 UT (#932004-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-11-15 (T+242.5d)
Image below (2021-11-15.919) was taken 242.5 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.76
(linked with Detection Threshold = 30)
Image
Annotated CCD Image (100% size, linear scale, cropped)
4 x 30s exposure (average combine), 3x3 binning, C Filter
2021-11-15 22:04 UT (#933030-34)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-11-16 (T+243.6d)
Image below (2021-11-16.974) was taken 243.6 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.84
(linked with Detection Threshold = 50)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-11-16 23:25 UT (#934042-46)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-11-19 (T+246.3d)
Image below (2021-11-19.749) was taken 246.3 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.64
(linked with Detection Threshold = 50)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-11-19 18:01 UT (#935009-13)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-11-24 (T+250.7d)
Image (2021-11-24.079) was taken 250.7 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.64
(poor quality image)
(linked with Detection Threshold = 50)
Image
Annotated CCD Image (100% size, linear scale, cropped)
3 x 30s exposure (average combine), 3x3 binning, C Filter
2021-11-24 01:56 UT (#936185-89)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-12-05 (T+262.5d)
Image below (2021-12-05.935) was taken 262.5 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.88
(linked with Detection Threshold = 50)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-12-05 22:28 UT (#939132-36)
12" LX200R (at f/10.4) + ST-10XME
 
Nova Cas 2021 / AT2021hkn - 2021-12-13 (T+270.4d)
Image below (2021-12-13.838) was taken 270.4 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +8.98
(linked with Detection Threshold = 50)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-12-13 20:07 UT (#941091-95)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-12-16 (T+273.4d)
Image below (2021-12-16.863) was taken 273.4 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +9.06
(linked with Detection Threshold = 50
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-12-16 20:43 UT (#942057-61)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-12-24 (T+281.5d)
Image below (2021-12-24.928) was taken 281.5 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +9.20
(linked with Detection Threshold = 50)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-12-24 22:18 UT (#944024-28)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-12-28 (T+285.4d)
Image below (2021-12-28.872) was taken 285.4 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +9.13
(linked with Detection Threshold = 50)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-12-28 20:56 UT (#945011-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2021-12-29 (T+286.5d)
Image below (2021-12-29.928) was taken 286.5 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +9.00
(linked with Detection Threshold = 30)
Image
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2021-12-29 22:18 UT (#946049-53)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2022-01-01 (T+289.3d)
Image below (2022-01-01.727) was taken 289.3 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +9.18
(linked with Detection Threshold = 50
Image 
Annotated CCD Image (100% size, linear scale, cropped)
4 x 30s exposure (average combine), 3x3 binning, C Filter
2022-01-01 17:28 UT (#947003-07)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2022-01-03 (T+291.3d)
Image below (2022-01-03.734) was taken 291.3 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +9.08
(linked with Detection Threshold = 30)
Poor quality image - single frame/affected by wind shake
Image 
Annotated CCD Image (100% size, linear scale, cropped)
30s exposure (single frame), 3x3 binning, C Filter
2022-01-03 17:39 UT (#948015)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-01-09 am (T+296.9d)
Image below (2022-01-09.292) was taken 296.9 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +9.32
(linked with Detection Threshold = 15)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2022-01-09 07:02 UT (#951163-67)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-01-09 pm (T+297.4d)
Image below (2022-01-09.842) was taken 297.4 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +9.58
(linked with Detection Threshold = 30)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2022-01-09 20:14 UT (#952090-94)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-01-11 (T+298.9d)
Image below (2022-01-11.289) was taken 298.9 days after discovery of
Nova is shown by white cross hairs.  Measured magnitude +9.25
(linked with Detection Threshold = 15)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
4 x 30s exposure (average combine), 3x3 binning, C Filter
2022-01-11 06:58 UT (#953078-82)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-01-14 (T+301.6d)
Image below (2022-01-14.006) was taken 301.6 days after discovery of V1405 Cas
Nova is shown by white cross hairs.  Measured magnitude +9.41
(linked with Detection Threshold = 15)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
3 x 30s exposure (average combine), 3x3 binning, C Filter
2022-01-14 00:09 UT (#954013-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-01-17 (T+305.5d)
Image below (2022-01-17.915) was taken 305.5 days after discovery of V1405 Cas
Nova is shown by white cross hairs.  Measured magnitude +9.45
(linked with Detection Threshold = 15)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
4 x 30s exposure (average combine), 3x3 binning, C Filter
2022-01-17 21:59 UT (#955081-85)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2022-01-21 (T+309.4d)
Image below (2022-01-21.794) was taken 309.4 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +9.68
(linked with Detection Threshold = 30
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2022-01-21 19:06 UT (#957049-53)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-01-22 (T+310.5d)
Image below (2022-01-22.877) was taken 310.5 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +9.58
(linked with Detection Threshold = 30
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2022-01-22 21:05 UT (#958073-77)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-01-25 (T+313.4d)
Image below (2022-01-25.853) was taken 313.4 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +9.55
(linked with Detection Threshold = 30
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2022-01-25 20:30 UT (#959034-38)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2022-01-27 (T+315.4d)
Image below (2022-01-27.820) was taken 315.4 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +9.95 (fading)
(linked with Detection Threshold = 30
Image 
Annotated CCD Image (100% size, linear scale, cropped)
4 x 30s exposure (average combine), 3x3 binning, C Filter
2022-01-27 19:42 UT (#960003-06)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2022-02-05 (T+323.8d)
Image below (2022-02-05.203) was taken 323.8 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +9.33
Image 
Annotated CCD Image (100% size, linear scale, cropped)
2 x 30s exposure (average combine), 3x3 binning, C Filter
2022-02-05 04:54 UT (#963242-43)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-02-05 (T+324.4d)
Image below (2022-02-05.842) was taken 324.4 days after discovery of
Nova is shown by white cross hairs.  Measured magnitude +9.50
(linked with Detection Threshold = 15)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
30s exposure (single frame), 3x3 binning, C Filter
2022-02-05 20:14 UT (#964006)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-02-09 (T+328.4d)
Image below (2022-02-09.776) was taken 328.4 days after discovery of  V1405 Cas
Nova is shown by white cross hairs.  Measured magnitude +9.77
(linked with Detection Threshold = 30
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2022-02-09 18:39 UT (#968003-07)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 / AT2021hkn - 2022-02-11 (T+329.8d)
Image below (2022-02-11.199) was taken 329.8 days after discovery of Nova
Nova is shown by white cross hairs.  Measured magnitude +9.60
(linked with Detection Threshold = 50
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2022-02-11 04:48 UT (#969162-66)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-02-20 (T+339.4d)
Image below (2022-02-20.872) was taken 339.4 days after discovery of
Nova is shown by white cross hairs.  Measured magnitude +9.94
(linked with Detection Threshold = 30
Image 
Annotated CCD Image (100% size, linear scale, cropped)
4 x 30s exposure (average combine), 3x3 binning, C Filter
2022-02-20 20:58 UT (#973063-67)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-02-23 (T+342.5d)
Image below (2022-02-23.935) was taken 342.5 days after discovery of f V1405 Cas
Nova is shown by white cross hairs.  Measured magnitude +9.83
(linked with Detection Threshold = 30
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2022-02-23 22:27 UT (#976049-53)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-03-01 (T+347.7d)
Image below (2022-03-01.160) was taken 347.7 days after discovery of V1405 Cas
Nova is shown by white cross hairs.  Measured magnitude +9.73
(linked with Detection Threshold = 30
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2022-03-01 03:53 UT (#979149-53)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-03-01 (T+348.4d)
Image below (2022-03-01.868) was taken 348.4 days after discovery of V1405
Nova is shown by white cross hairs.  Measured magnitude +9.84
(linked with Detection Threshold = 30
Image 
Annotated CCD Image (100% size, linear scale, cropped)
3 x 30s exposure (average combine), 3x3 binning, C Filter
2022-03-01 20:52 UT (#980047-49)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-03-05 (T+351.8d)
Image below (2022-03-05.201) was taken 351.8 days after discovery of V1405
Nova is shown by white cross hairs.  Measured magnitude +9.62
(linked with Detection Threshold = 30
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2022-03-05 04:51 UT (#981126-30)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-03-05 (T+352.4d)
Image below (2022-03-05.809) was taken 352.4 days after discovery of  V1405
Nova is shown by white cross hairs.  Measured magnitude +9.56
(linked with Detection Threshold = 30)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
4 x 30s exposure (average combine), 3x3 binning, C Filter
2022-03-05 19:23 UT (#982004-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-03-07 (T+353.7d)
Image below (2022-03-07.163) was taken 353.7 days after discovery of V1405
Nova is shown by white cross hairs.  Measured magnitude +9.31
(linked with Detection Threshold = 30)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
4 x 30s exposure (average combine), 3x3 binning, C Filter
2022-03-07 03:57 UT (#983171-75)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-03-15 (T+361.7d)
Image below (2022-03-15.087) was taken 361.7 days after discovery of V1405
Nova is shown by white cross hairs.  Measured magnitude +9.48
(linked with Detection Threshold = 15)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2022-03-15 02:07 UT (#985034-38)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-03-20 (T+366.7d)
Image below (2022-03-20.143) was taken 366.7 days after discovery of V1405
Nova is shown by white cross hairs.  Measured magnitude +10.09
(linked with Detection Threshold = 30)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2022-03-20 03:28 UT (#989215-19)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-04-28 (T+405.6d)
Image below (2022-04-28.056) was taken 405.6 days after discovery of V1405
Nova is shown by white cross hairs.  Measured magnitude +9.97
(linked with Detection Threshold = 30)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2022-04-28 01:23 UT (#1004091-95)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-05-07 (T+415.6d)
Image below (2022-05-07.999) was taken 415.6 days after discovery of V1405 Cas
Nova is shown by white cross hairs.  Measured magnitude +10.29
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2022-05-08 00:00 UT (#1007045-49)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-05-10 (T+418.5d)
Image below (2022-05-10.946) was taken 418.5 days after discovery of  V1405 Cas
Nova is shown by white cross hairs.  Measured magnitude +10.28
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2022-05-10 22:44 UT (#1008015-19)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-08-20 (T+519.7d)
Image below (2022-08-20.107) was taken 519.7 days after discovery of
Nova is shown by white cross hairs.  Measured magnitude +10.45
Image 
Annotated CCD Image (100% size, linear scale, cropped)
4 x 30s exposure (average combine), 3x3 binning, Clear Filter
2022-08-20 02:31 UT (#1029118-21)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-10-27 (T+587.6d)
Image below (2022-10-27.051) was taken 587.6 days after discovery of
Nova is shown by white cross hairs.  Measured magnitude +11.04
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, Clear Filter
2022-10-27 01:16 UT (#1049122-26)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-11-03 (T+595.5d)
Image below (2022-11-03.944) was taken 595.5 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +11.03
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, Clear Filter
2022-11-03 22:42 UT (#1053130-34)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2022-11-29 (T+621.4d)
Image below (2022-11-29.845) was taken 621.4 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +11.25
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, Clear Filter
2022-11-29 20:19 UT (#1065100-04)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2023-01-01 (T+654.4d)
Image below (2023-01-01.844) was taken 654.4 days after discovery of
Nova is shown by white cross hairs.  Measured magnitude +11.34
Image 
Annotated CCD Image (100% size, linear scale, cropped)
3 x 30s exposure (average combine), 3x3 binning, Clear Filter
2023-01-01 20:17 UT (#1080023-25)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2023-09-04 (T+899.7d)
Image below (2023-09-04.085) was taken 899.7 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +12.20
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, Clear Filter
2023-09-04 02:04 UT (#1138158-62)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2023-09-07 (T+902.7d)
Image below (2023-09-07.112) was taken 902.7 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +12.06
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, Clear Filter
2023-09-07 02:43 UT (#1140127-31)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2023-09-08 (T+904.5d)
Image below (2023-09-08.889) was taken 904.5 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +11.97
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, Clear Filter
2023-09-08 21:22 UT (#1141033-37)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2023-09-29 (T+924.7d)
Image below (2023-09-29.162) was taken 924.7 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +12.04
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, Clear Filter
2023-09-29 03:55 UT (#1150051-55)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2023-10-04 (T+930.5d)
Image below (2023-10-04.878) was taken 930.5 days after discovery of
Nova is shown by white cross hairs.  Measured magnitude +11.74 (brightened)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, Clear Filter
2023-10-04 21:06 UT (#1154018-22)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2023-10-12 (T+937.7d)
Image below (2023-10-12.122) was taken 937.7 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +11.81
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, Clear Filter
2023-10-12 02:56 UT (#1156179-83)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2023-10-17 (T+942.7d)
Image below (2023-10-17.159) was taken 942.7 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +12.02
Image 
Annotated CCD Image (100% size, linear scale, cropped)
4 x 30s exposure (average combine), 3x3 binning, Clear Filter
2023-10-17 03:51 UT (#1157005-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2023-10-22 (T+948.4d)
Image below (2023-10-22.799) was taken 948.4 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +12.09
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, Clear Filter
2023-10-22 19:13 UT (#1158019-23)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2023-11-12 (T+969.5d)
Image below (2023-11-12.885) was taken 969.5 days after discovery of
Nova is shown by white cross hairs.  Measured magnitude +12.14
Image 
Annotated CCD Image (100% size, linear scale, cropped)
4 x 30s exposure (average combine), 3x3 binning, Clear Filter
2023-11-12 21:16 UT (#1166040-44)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2023-11-15 (T+972.5d)
Image below (2023-11-15.933) was taken 972.5 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +12.06
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, Clear Filter
2023-11-15 22:25 UT (#1167183-87)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2023-12-02 (T+989.4d)
Image below (2023-12-02.869) was taken 989.4 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +11.99
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, Clear Filter
2023-12-02 20:53 UT (#1171075-79)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2023-12-06 (T+992.6d)
Image below (2023-12-06.026) was taken 992.6 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +11.89
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, Clear Filter
2023-12-06 00:40 UT (#1172126-30)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2023-12-18 (T+1004.6d)
Image below (2023-12-18.025) was taken 1004.6 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +12.14 (Clear Filter)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
4 x 30s exposure (average combine), 3x3 binning, Clear Filter
2023-12-18 00:37 UT (#1174068-72)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 (Nova) - 2024-02-21 (T+1070.5d)
Image below (2024-02-21.915) was taken 1070.5 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +12.07 (Clear Filter)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, Clear Filter
2024-02-21 21:59 UT (#1188057-61)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 - 2024-02-22 (T+1071.5d)
Image below (2024-02-22.891) was taken 1071.5 days after discovery of nova
Nova is shown by white cross hairs.  Measured magnitude +12.05 (Clear Filter)
Image 
Annotated CCD Image (100% size, linear scale, cropped)
2 x 30s exposure (average combine), 3x3 binning, Clear Filter
2024-02-22 21:23 UT (#1189056-57)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 (V1405 Cas) Spectra
Image
CCD Image (100% size, rotated, square root scale, cropped)
2 x 30s exposure (average combine), 2x2 binning, S Filter
2021-08-24 00:59 UT (#907056-57)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Image
Spectra taken with Star Analyser 200 (square root scale)
5 x 30s exposure (average combine), 2x2 binning, S Filter
2021-11-15 22:08 UT (#933035-39)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Image
Spectra taken with Star Analyser 200 (square root scale)
5 x 30s exposure (average combine), 2x2 binning, S Filter
2022-01-21 19:10 UT (#957054-58)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Image
Spectra taken with Star Analyser 200 (square root scale)
5 x 45s exposure (average combine), 2x2 binning, S Filter
2022-04-28 01:27 UT (#1004096-100)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Image
Spectra taken with Star Analyser 200 (square root scale)
5 x 60s exposure (average combine), 2x2 binning, S Filter
2022-11-03 22:47 UT (#1053135-39)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Image
Spectra taken with Star Analyser 200 (square root scale)
5 x 60s exposure (average combine), 2x2 binning, S Filter
2023-09-04 02:08 UT (#1138163-67)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Image
Spectra taken with Star Analyser 200 (square root scale)
5 x 90s exposure (average combine), 2x2 binning, S Filter
2023-10-22 19:19 UT (#1158024-28)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 (V1405 Cas) Spectra - Corrected
.  Raw Spectra calibrated using two point calibration in RSpec 2.0.0: 
1) Zero Order Star at 0 and 2) Ha emission line at 6563 A. 
Giving a calibration scale of 25.5 Angstroms/pixel
Then corrected using Instrument Response determined from
Reference Star HIP 115566 / SAO 20610 (Type B9III) taken at same time & at same altitude (85 deg).
Details: Session S907, 2021-08-23
Image
Spectra produced in RSpec 2.0.0 using Image taken with Star Analyser 200
Image details as above
 
Nova Cas 2021 (V1405 Cas) Spectra,  2021-08-23 to 2021-08-27
Corrected using Instrument Response Curve
Image
Spectra produced in RSpec 2.0.0 using Images taken with Star Analyser 200
Displayed using RSpec Presentation Manager
Image details as above
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-08-24 (T+158.6d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-08-27 (T+162.6d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-09-01 (T+166.7d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-09-06 (T+172.6d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-09-07 (T+175.5d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-09-19 (T+185.5d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-09-22 (T+187.7d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-09-27 (T+193.5d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-09-29 (T+195.5d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-10-02 (T+197.6d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-10-03 (T+199.6d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-10-04 (T+200.5d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-10-15 (T+210.6d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-10-25 (T+220.6d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-10-30 (T+226.6d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-11-03 (T+230.5d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-11-09 (T+236.4d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-11-15 (T+242.5d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-11-16 (T+243.6d) 
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-11-19 (T+246.3d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-11-24 (T+250.7d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-12-05 (T+262.5d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra -  2021-12-13 (T+270.4d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-12-16 (T+273.4d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-12-24 (T+281.5d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-12-28 (T+285.4d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2021-12-29 (T+286.5d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-01-01 (T+289.3d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-01-03 (T+291.3d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-01-09 am (T+296.9d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-01-09 pm (T+297.4d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-01-11 (T+298.9d)
 
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-01-14 (T+301.6d)
 
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-01-17 (T+305.5d)
 
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-01-21 (T+309.4d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-01-22 (T+310.5d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-01-25 (T+313.4d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-01-27 (T+315.4d)
Image
Spectra produced in AstroMain using Image taken with Star Analyser 200
5 x 30s exposure (average combine), 2x2 binning, S Filter
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-02-05 (T+323.8d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-02-05 (T+324.4d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-02-09 (T+328.4d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-02-11 (T+329.8d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-02-20 (T+339.4d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-02-23 (T+342.5d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-03-01 (T+347.7d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-03-01 (T+348.4d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-03-05 (T+351.8d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-03-05 (T+352.4d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-03-07 (T+353.7d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-03-15 (T+361.7d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-03-20 (T+366.7d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-04-28 (T+405.6d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-05-07 (T+415.6d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-05-10 (T+418.5d)
Note:  Exposure increased to 60s for this and subsequent sessions
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-08-20 (T+519.7d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-10-27 (T+587.6d)
Image
Spectra produced in AstroMain using Image taken with Star Analyser 200
5 x 60s exposure (average combine), 2x2 binning, S Filter
2022-10-27 01:21 UT (#1049127-31)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-11-03 (T+595.5d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2022-11-29 (T+621.4d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2023-01-01 (T+654.4d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2023-09-04 (T+899.7d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2023-09-07 (T+902.7d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2023-09-08 (T+904.5d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2023-09-29 (T+924.7d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2023-10-04 (T+930.5d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2023-10-12 (T+937.7d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2023-10-17 (T+942.7d)
Image
 
 
Nova Cas 2021 (V1405 Cas) Spectra - 2023-10-22 (T+948.4d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2023-11-12 (T+969.5d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2023-11-15 (T+972.5d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2023-12-02 (T+989.4d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2023-12-06 (T+992.6d)
Image
Spectra produced in AstroMain using Image taken with Star Analyser 200
4 x 90s exposure (average combine), 2x2 binning, S Filter
2023-12-06 00:45 UT (#1172131-34)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Nova Cas 2021 (V1405 Cas) Spectra - 2023-12-18 (T+1004.6d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2024-02-22 (T+1071.5d)
Image
 
Nova Cas 2021 (V1405 Cas) Spectra - 2024-02-21 (T+1070.5d)
Image
 
 End

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