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Images - Session 1448 (2026-09-06)
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Objects Session Notes
AT 2026juw - CV Type Transient AT 2026lxf - CV Type Transient (non-detection) M31N 2026-06a? - Extragalactic Nova in M31 M72 - Globular Cluster NGC 3310 - Spiral Galaxy with Type Ia-CSM Supernova 2026sqf NGC 7331 - Spiral Galaxy with Type Ia Supernova 2026aaiv NGC 7741 - Spiral Galaxy UGC 242 - Spiral Galaxy with Type II Supernova 2026yum UGC 12613 - Irregular Galaxy UGC 12856 - Irregular Galaxy (ARP 262) - Nova Aql 2026, Nova Aql 2026 attempt failed (due to cloud) Variable Stars (photometric monitoring) - T CrB, AM Her, CY Lyr Nearby Stars (astrometric monitoring) - None
- Attempted All-Night Session (4.4 hr) ended early by cloud. - 12" LX200 + ST-10XME for imaging - TS 80mm APO + ZWO ASI178MC for guiding & imaging - Ambient Temperature: 15°C (min) - CCD Temperature: -10°C - Notes from 2026-09-06 >> - -
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AT 2026juw (Cygnus)
AT 2026juw (Type: CV) discovered 2026-04-16.318 UT by GEOTS Alias: GEOTS-Balaji-2026-005, IRAS 19523+4538 Discovery Magnitude 13.8 (Clear Filter) vs Prior Non-Detection Limiting Magnitude 18 (Clear Filter) Discovered in Cyg using 14" f/2.0 Astrograph at Golden Ears Observatory (MPC code U55). Group reports the discovery of a variable star displaying significant variability, characterized by periods of quiescence interspersed with episodic flaring activity. The object has increased in brightness by approximately 1.8 magnitudes compared to its last recorded observation on March 30, 2025. Period analysis of ZTF light curves performed with Peranso suggests a periodicity of roughly 323 days. ( TNS 2026juw ) |
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AT 2026juw - 2026-09-07 (T+143.7d)
Image below (2026-09-07.031) was taken 143.7 days after discovery of 2026juw Position of earlier transient (faint) is shown by white cross-hairs Measured Magnitude +14.06 (Clear Filter) |
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Annotated CCD Image (100% size, linear scale, cropped)
2 x 60s exposure (average combine), 3x3 binning, Clear Filter 2026-09-07 00:47 UT (#1448122-26) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2026juw on Transients 2026 Page >> |
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AT 2026lxf (Bootes)
AT 2026lxf (Type: CV) discovered 2026-05-08.326 UT by Claudio Balcon Alias: TCP J15030519+2202041 Discovery Magnitude 13.9 (Clear Filter) vs Prior Non-Detection Limiting Magnitude 15 (Clear Filter) Dwarf nova candidate found with the NMW-TexasTech survey using two identical 135mm telephoto lenses + unfiltered QHY600M CMOS cameras. The transient was first detected on 2026-05-08. 3260 UTC at CV=13.95 with one camera and confirmed in images taken with the second camera 78 minutes later on 2026-05-08.3803 at CV=14.01. The magnitude difference is not significant given the expected photometric uncertainty of 0.06 mag. The object was not detected above the magnitude limit of CV~15 on the images taken the previous night on 2026-05-07.4551. A blue Pan-STARRS 1 DR2 source PS1 134442257714871804 (g=21.38 +/-0.04, r=21.50 +/-0.05) is located at 15:03:05.16 +22:02:03.6 J2000, just 0.6" from the measured position of the transient (NMW-TexasTech image scale is 5.9"/pix). The plate-solved FITS images, finder charts and animations produced from the NMW-TexasTech images are available at https://tau.kirx.net/img/TCPJ15030519+2202041/ The NMW-TexasTech survey operates at TTU Preston Gott Skyview Observatory (Shallowater, Texas). ( TNS 2026lxf ) |
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AT 2026lxf - 2026-09-06 (T+121.6d)
Image below (2026-09-06.876) was taken 121.6 days after discovery of 2026lxf Position of earlier transient (not visible) is shown by white cross-hairs Non-Detection Limiting Magnitude +19.4 (Clear Filter) |
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Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2026-09-06 21:05 UT (#1448021-25) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of AT 2026lxf on Transients 2026 Page >> |
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M31 with M31N 2026-06a? (Andromeda)
M31N 2026-06a? (Type: EGN?) discovered 2026-06-26.059 UT by Kamil Hornoch et al. Alias: PNV J00423204+4110283 [ Messier Objects ] |
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M31 w/M31N 2026-06a? - Reference Image
Position of M31N 2026-06a? (not separately visible in this image) is shown by blue circle Limits of M31 Spiral Galaxy is shown by pale cyan ellipse |
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Annotated CMOS Image (16% size)
10s exposure, 1x1 binning 2026-09-06 21:53 UT TS 80mm APO + ZWO ASI178MC |
| M31 with M31N 2026-06a? |
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Annotated CCD Image (70% size, square root scale)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-09-06 22:05 UT (#1448043-45) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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M31N 2026-06a? - 2026-09-06 (T+72.9d)
Image below (2026-09-06.917) was taken 72.9 days after discovery of M31N 2026-06a? Position of earlier transient (faint) is shown by white cross-hairs Measured Magnitude +15.42 (Clear Filter) |
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Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-09-06 22:05 UT (#1448043-45) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of M31N 2026-06a? (in M31) on Transients 2026 Page >> |
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M72 (Aquarius)
[ Globular Star Clusters ] [ Messier Objects ] |
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Annotated CCD Image (50% size, square root scale)
9 x 60s exposure (average combine), 3x3 binning, Clear Filter 2026-09-06 23:51 UT (#1448088-96) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| M72 - Detail |
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Annotated CCD Image (100% size, square root scale, cropped)
Image details as above |
| M72 - Earlier Image (Aug 2005) |
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CCD Image
3 x 60 sec exposure (average), clear filter 2005-08-14 22:21 h UT (#92105-07) 8" LX200 Classic (at f/10.4) + ST-7E |
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NGC 3310 with SN 2026sqf (Ursa Major)
SN 2026sqf (Type: Ia-CSM) discovered 2026-07-08.251 UT by Patrick Wiggins Alias: ZTF26abfmmvq Discovery Magnitude 12.9 (Clear Filter) vs Prior Non-Detection Limiting Magnitude 19 (Clear Filter) P. Wiggins. Universitv of Utah. Utah. USA reports his discover off a possible supernova mag about 12.9 on an unfiltered CCD frame taken 2026 Jul 08 using a 0.35-m refractor near Erda, Utah, USA ( TNS 2026sqf ) |
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NGC 3310 with SN 2026sqf - 2026-09-06 (T+60.6d)
Image below (2026-09-06.856) was taken 60.6 days after discovery of 2026sqf Position of earlier supernova (distinct) is shown by white cross-hairs Measured Magnitude +11.35 (Clear Filter) |
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Annotated CCD Image (100% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-09-06 20:40 UT (#1448004-08) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2026sqf (in NGC 3310) on Supernovae 2026 Page >> |
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NGC 7331 with SN 2026aaiv (Pegasus)
SN 2026aaiv (Type: Ia) discovered 2026-09-01.475 UT by ATLAS Alias: ATLAS26krw Discovery Magnitude 17.325 (orange-ATLAS Filter) vs Prior Non-Detection Limiting Magnitude 18.87 (orange-ATLAS Filter) ( TNS 2026aaiv ) |
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NGC 7331 with SN 2026aaiv - 2026-09-07 (T+5.5d)
Image below (2026-09-07.001) was taken 5.5 days after discovery of 2026aaiv |
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Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-09-07 00:10 UT (#1448099-103) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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NGC 7331 - Earlier Image (with SN 2025rbs), 2025-08-03
Image below (2025-08-03.016) was taken 19.9 days after discovery of 2025rbs Position of reported SN 2025rbs (distinct) is shown by white cross-hairs Measured Magnitude +12.08 (Clear Filter) |
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Annotated CCD Image (125% size, log scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2025-08-03 00:30 UT (#1345057-60) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2026aaiv (in NGC 7331) on Supernovae 2026 Page >> |
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NGC 7741 (Pegasus)
With H II regions and background galaxy |
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Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-09-06 22:35 UT (#1448050-55) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| NGC 7741 - Detail |
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Annotated CCD Image (125% size, square root scale, cropped)
Image details as above |
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Annotated negative CCD Image (125% size, square root scale, cropped)
Image details as above |
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UGC 242 with SN 2026yum (Pisces)
SN 2026yum (Type: II) discovered 2026-08-13.092 UT by ATLAS Alias: GOTO26iei, ATLAS26jxg, ZTF26abnuyoi Discovery Magnitude 18.04 (L-GOTO Filter) vs Prior Non-Detection Limiting Magnitude 20.2 (L-GOTO Filter) ( TNS 2026yum ) |
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UGC 242 - Spiral Galaxy
Alias: PGC 1591 (catalog mag +14.6) Adjacent galaxy PGC 212516 (catalog mag +16.2) |
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Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-09-06 21:22 UT (#1448028-32) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
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UGC 242 with SN 2026yum - 2026-09-06 (T+24.8d)
Image below (2026-09-06.884) was taken 24.8 days after discovery of 2026yum Position of earlier supernova (faint) is shown by white cross-hairs Estimated Magnitude +17.1 (Clear Filter) |
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Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-09-06 21:22 UT (#1448028-32) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| Images of SN 2026yum (in UGC 242) on Supernovae 2026 Page >> |
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UGC 12613 (Pegasus)
Local Group Galaxy, Pegasus Dwarf [ Irregular Galaxies ] [ Local Group Galaxies ] |
| UGC 12613 - Irregular Galaxy |
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Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-09-06 21:43 UT (#1448035-39) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| UGC 12613 (Pegasus) |
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Annotated CCD Image (100% size, square root scale, cropped)
Image details as above |
| UGC 12613 - Earlier Image (Dec 2009) |
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CCD Image (cropped)
6 x 45 sec exposure (average combine), 3x3 binning, C Filter 2009-12-04 20:25 h UT (#402248-57) 12" LX200R (at f/5.7) + ST-10XME |
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UGC 12856 (Pegasus)
Alias / ARP 262. With H II region [ ARP Galaxies ] [ Irregular Galaxies ] |
| UGC 12856 - Irregular Galaxy |
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Annotated CCD Image (50% size, square root scale)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter 2026-09-06 22:56 UT (#1448058-61) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2 |
| UGC 12856 - Detail |
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Annotated CCD Image (125% size, square root scale, cropped)
Image details as above |
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| This Web Page: | Images - Session 1448 (2026-09-06) |
| Last Updated : | 2026-09-08 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |