David's Astronomy Pages
Images - Session 1416 (2026-04-03)

Objects Session Notes
Bullet 10P/Tempel - Comet  (non-detection)
Bullet 29P/Schwassmann-Wachmann - Comet
 
Bullet C/2023 R1 (PANSTARRS) - Comet
Bullet C/2025 R3 (PANSTARRS) - Comet
 
Bullet AT 2026cqc - CV Type Transient
Bullet AT 2026hur - Type CV? Transient
 
Bullet IC 4556 - Elliptical Galaxy with Type Ia Supernova 2026fuz
Bullet LEDA 68428 - Galaxy with Type Ia Supernova 2025acqv
Bullet M31N 2026-02a - Extragalactic Nova in M31  (non-detection)
Bullet M92 - Globular Cluster
 
Bullet NGC 3660 - Spiral Galaxy with Type II Supernova 2026cff
Bullet NGC 3689 - Spiral Galaxy with Type Ib Supernova 2026gwx
Bullet NGC 4205 - Spiral Galaxy with Type Ia Supernova 2026fvx
Bullet NGC 4206 - Spiral Galaxy
Bullet NGC 4216 - Spiral Galaxy
Bullet NGC 4914 - Elliptical Galaxy with Type Ia Supernova 2026fjc
 
Bullet UGC 5607 - Spiral Galaxy with Type Ia Supernova 2026kc
Bullet UGC 9533 - Spiral Galaxy with Type unconf Transient AT 2026hvo  (non-detection)
 
Bullet Variable Stars (photometric monitoring)
- T CrB, AM Her, BL Lac, CY Lyr
 
Bullet Nearby Stars (astrometric monitoring)
- None
 
- All-Night Session (7.8 hr)
- 12" LX200 + ST-10XME for imaging
- TS 80mm APO + ZWO ASI178MC for guiding & imaging
- Ambient Temperature: 2.5°C (min)
- CCD Temperature:  -20°/-25°C
- Notes from 2026-04-03 >>
-
-

Observing Result

Image

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10P/Tempel  - Comet  (non-detection)

10P/Tempel - 2026-04-04
(passing through Serpens)

Sun Distance 1.86 AU
Earth Distance 1.42 AU (213.2 million km)
   10P/Tempel - 2026-04-04 Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 72.2 arcsec/hr, Dec 6.8 arcsec/hr)
Expected Position of comet (not visible) is shown by white cross-hairs
Image    Image
Annotated CCD Image (50% size, square root scale)
180s exposure (single frame), 3x3 binning, Clear Filter
2026-04-04 03:23 UT (#1416124)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
   Annotated CCD Image (125% size, square root scale, cropped)
180s exposure (single frame), 3x3 binning, Clear Filter
2026-04-04 03:23 UT (#1416124)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
      
Images of Comet_10P_Tempel on Comets 2026 Page  >>     

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29P/Schwassmann-Wachmann  - Comet

29P/Schwassmann-Wachmann - 2026-04-03
(passing through Leo)

Sun Distance 6.31 AU
Earth Distance 5.40 AU (807.9 million km)
   29P/Schwassmann-Wachmann - 2026-04-03 Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -13.2 arcsec/hr, Dec 5.6 arcsec/hr)
Measured M2 Magnitude +15.98 (Clear Filter)
Image    Image
Annotated CCD Image (50% size, square root scale)
6 x 90s exposure (average combine), 3x3 binning, Clear Filter
2026-04-03 22:33 UT (#1416038-43)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
   Annotated CCD Image (125% size, square root scale, cropped)
6 x 90s exposure (average combine), 3x3 binning, Clear Filter
2026-04-03 22:33 UT (#1416038-43)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
      
Images of Comet_29P_Schwassmann-Wachmann on Comets 2026 Page  >>     

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C/2023 R1 (PANSTARRS)  - Comet

C/2023 R1 (PANSTARRS) - 2026-04-04
(passing through Aquila)

Sun Distance 3.57 AU
Earth Distance 3.58 AU (535.7 million km)
   C/2023 R1 (PANSTARRS) - 2026-04-04 Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra -20.7 arcsec/hr, Dec -1.2 arcsec/hr)
Image    Image
Annotated CCD Image (50% size, square root scale)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-04 03:40 UT (#1416128-33)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
   Annotated CCD Image (125% size, square root scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-04 03:40 UT (#1416128-33)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
      
Images of C2023_R1_PANSTARRS on Comets 2026 Page  >>     

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C/2025 R3 (PANSTARRS)  - Comet

C/2025 R3 (PANSTARRS) - 2026-04-04
(passing through Pegasus)

Sun Distance 0.62 AU
Earth Distance 1.14 AU (170.7 million km)
   C/2025 R3 (PANSTARRS) - 2026-04-04 Detail
Autoguided on offset star using PHD2 with Lock Shift
set at the comet's rate of motion
(Ra 71.9 arcsec/hr, Dec 3.6 arcsec/hr)
Image    Image
Annotated CCD Image (50% size, square root scale)
2 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-04 03:53 UT (#1416137-38)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
   Annotated CCD Image (100% size, log scale, cropped)
8 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-04 03:56 UT (#1416137-44)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
      
Images of C2025_R3_PANSTARRS on Comets 2026 Page  >>     

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AT 2026cqc  - CV Type Transient

AT 2026cqc (Cygnus)
AT 2026cqc (Type: CV) discovered 2026-02-09.526 UT by MASTER
Alias: MASTER OT J191527.78+542418.1
Discovery Magnitude 16.4 (Other- Filter)
vs Prior Non-Detection Limiting Magnitude 17.8 (Other- Filter)
variable star, no OT at 2023-07-03 06:33:19 with mlim=17.8
( TNS 2026cqc )
 
AT 2026cqc - 2026-04-04 (T+53.5d)
Image below (2026-04-04.041) was taken 53.5 days after discovery of 2026cqc
Position of earlier transient (faint) is shown by white cross-hairs
Estimated Magnitude +16.6 (Clear Filter)
Image
Annotated CCD Image (100% size, linear scale, cropped)
2 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-04 01:00 UT (#1416063-64)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2026cqc on Transients 2026 Page  >>

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AT 2026hur  - Type CV? Transient

AT 2026hur (Serpens)
AT 2026hur (Type: CV?) discovered 2026-03-29.850 UT by XOSS
Alias: KATS26F005
Discovery Magnitude 15.81 (Clear- Filter)
vs Prior Non-Detection Limiting Magnitude ( Filter)
Cataclysmic variable candidate classified by XOSS.
Details can be found at http://xjltp.china-vo.org/kats26f005.html
( TNS 2026hur )
 
AT 2026hur - 2026-04-04 (T+5.3d)
Image below (2026-04-04.123) was taken 5.3 days after discovery of 2026hur
Position of earlier transient (fain but distinctt) is shown by white cross-hairs
Measured Magnitude +16.37 (Clear Filter)
Lack of any movemen of object (white cross-hairs and yellow cross-hairs)
since images at 2026-04-02.084 rule out any asteroid origin.
Image
Annotated CCD Image (175% size, linear scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-04 03:05 UT (#1416116-20)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
AT2026hur - Earlier Image (2026-04-02)
Image
Annotated CCD Image (175% size, linear scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-02 02:10 UT (#1415114-18)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2026hur on Transients 2026 Page  >>

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IC 4556  - Elliptical Galaxy with Type Ia Supernova 2026fuz

IC 4556 with SN 2026fuz (Serpens)
SN 2026fuz (Type: Ia) discovered 2026-03-15.132 UT by GOTO
Alias: GOTO26cbv, ZTF26aalhcqv
Discovery Magnitude 19.49 (L-GOTO Filter)
vs Prior Non-Detection Limiting Magnitude 19.9 (L-GOTO Filter)
( TNS 2026fuz )
 
IC 4556 with SN 2026fuz - 2026-04-04 (T+19.9d)
Image below (2026-04-04.048) was taken 19.9 days after discovery of 2026fuz
Position of earlier supernova (faint) is shown by white cross-hairs
Measured Magnitude +17.65 (Clear Filter)
Image
Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-04 01:17 UT (#1416067-71)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2026fuz (in IC 4556) on Supernovae 2026 Page  >>

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LEDA 68428  - Galaxy with Type Ia Supernova 2025acqv

LEDA 68428 with SN 2025acqv (Lacerta)
SN 2025acqv (Type: Ia) discovered 2025-11-05.162 UT by ZTF
Alias: ZTF21acbfyew, GOTO25kzy
Discovery Magnitude 19.1655 (g-ZTF Filter)
vs Prior Non-Detection Limiting Magnitude 18.8962 (g-ZTF Filter)
Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167).
( TNS 2025acqv )
 
LEDA 68428 with SN 2025acqv - 2026-04-04 (T+149.9d)
Image below (2026-04-04.085) was taken 149.9 days after discovery of 2025acqv
Position of earlier supernova (faint) is shown by white cross-hairs
Measured Magnitude (SN + Galaxy) +15.14 (Clear Filter)
Image
Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-04 02:12 UT (#1416096-100)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2025acqv (in LEDA 68428) on Supernovae 2025 Page  >>

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M31N 2026-02a - Extragalactic Nova in M31  (non-detection)

M31 with M31N 2026-02a (Andromeda)
M31N 2026-02a (Type: EGN) discovered 2026-02-20.738 UT by Kamil Hornoch et al.
Alias: PNV J00425133+4113491
[ Messier Objects
 
M31 with M31N 2026-02a - 2026-04-04 (T+42.4d)
Image below (2026-04-04.099) was taken 42.4 days after discovery of M31N 2026-02a
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +16.8 (Clear Filter)
Image
Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-04 02:32 UT (#1416103-07)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of M31N 2026-02a (in M31) on Transients 2026 Page  >>

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M92  - Globular Cluster

M92 (Hercules)
[ Globular Star Clusters ]  [ Messier Objects
 
M92 - Globular Cluster
Image
Annotated CMOS Image (16% size, linear scale (auto-stretched))
30 x 45s exposure (average combine), 1x1 binning, gain 200, OSC
2026-04-04 00:24 UT (#)
TS 80mm APO + ZWO ASI178MC
Auto-guided using 12" LX200R + ST-10XME & PHD2
 
M92 - Detail
Image
Annotated CMOS Image (50% size, auto-stretched, cropped)
Image details as above
 
M92 - Earlier Image (May 2020)
Image
CCD Image (100% size, log scale, cropped)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2020-05-07 00:51 UT (#780136-40)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 

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NGC 3660  - Spiral Galaxy with Type II Supernova 2026cff

NGC 3660 with SN 2026cff (Crater)
SN 2026cff (Type: II) discovered 2026-02-06.337 UT by ATLAS
Alias: ZTF26aaffpvx, ATLAS26bkl, GOTO26anl
Discovery Magnitude 17.0032 (r-ZTF Filter)
vs Prior Non-Detection Limiting Magnitude 18.9768 (r-ZTF Filter)
Early SN candidate (r-rise > 0.51+-0.01 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF26aaffpvx
( TNS 2026cff )
 
NGC 3660 with SN 2026cff - 2026-04-03 (T+56.6d)
Image below (2026-04-03.946) was taken 56.6 days after discovery of 2026cff
Position of earlier supernova (faint) is shown by white cross-hairs
Estimated Magnitude +16.2 (Clear Filter)
Image
Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-03 22:45 UT (#1416047-48)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2026cff (in NGC 3660) on Supernovae 2026 Page  >>

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NGC 3689  - Spiral Galaxy with Type Ib Supernova 2026gwx

NGC 3689 with SN 2026gwx (Leo)
SN 2026gwx (Type: Ib) discovered 2026-03-20.236 UT by ZTF
Alias: ZTF26aaodgsa
Discovery Magnitude 20.8896 (r-ZTF Filter)
vs Prior Non-Detection Limiting Magnitude 20.921 (g-ZTF Filter)
Bright (m_peak <= 18.5) transient candidate identified autonomously
by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167).
( TNS 2026gwx )
 
NGC 3689 - Spiral Galaxy with SN2026gwx (T+14.7d)
Image
Annotated CCD Image (50% size, square root scale)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-03 21:43 UT (#1416026-28)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
NGC 3689 with SN 2026gwx - 2026-04-03 (T+14.7d)
Image below (2026-04-03.901) was taken 14.7 days after discovery of 2026gwx
Position of earlier supernova (distinct) is shown by white cross-hairs
Measured Magnitude +14.77 (Clear Filter)
Image
Annotated CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-03 21:43 UT (#1416026-28)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2026gwx (in NGC 3689) on Supernovae 2026 Page  >>

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NGC 4205  - Spiral Galaxy with Type Ia Supernova 2026fvx

NGC 4205 with SN 2026fvx (Draco)
SN 2026fvx (Type: Ia) discovered 2026-03-17.986 UT by ATLAS
Alias: ZTF26aamqluf, ATLAS26dgt
Discovery Magnitude 19.46 (Clear- Filter)
vs Prior Non-Detection Limiting Magnitude 19.97 (Clear- Filter)
( TNS 2026fvx )
 
NGC 4205 with SN 2026fvx - 2026-04-03 (T+16.9d)
Image below (2026-04-03.922) was taken 16.9 days after discovery of 2026fvx
Position of earlier supernova (distinct) is shown by white cross-hairs
Measured Magnitude +12.38 (Clear Filter)
Image
Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-03 22:13 UT (#1416033-35)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2026fvx (in NGC 4205) on Supernovae 2026 Page  >>

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NGC 4206  - Spiral Galaxy

NGC 4206 (Virgo)
Ast.Now Deep Sky Challenge Apr 2026
[ Deep Sky Challanges (Ast.Now)
 
NGC 4206 - Spiral Galaxy
Image
Annotated CCD Image (50% size, square root scale)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-03 21:08 UT (#1416013-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
NGC 4206 - Detail
Image
CCD Image (100% size, square root scale, cropped)
Image details as above
 

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NGC 4216  - Spiral Galaxy

NGC 4216 (Virgo)
Ast. Now Challenge, May 2017
[ Deep Sky Challanges (Ast.Now) ]  [ Flat Galaxies
 
NGC 4216 (Virgo)
Image
Annotated CMOS Image (16% size, auto-stretched)
30 x 120s exposure (average combine), 1x1 binning, gain 200, OSC
2026-04-04 01:51 UT (#)
TS 80mm APO + ZWO ASI178MC
Auto-guided using 12" LX200R + ST-10XME & PHD2
 
NGC 4206, NGC 4216, NGC 4222 - a triplet of edge-on galaxies
Image
Annotated CMOS Image (25% size, auto-stretched, cropped)
Image details as above
 
NGC 4216 - Detail
60 mins total exposure time (80mm TS80 at f/6)
Image
Annotated CMOS Image (62% size, auto-stretched, cropped)
30 x 120s exposure (average combine), 1x1 binning, gain 200, OSC
2026-04-04 01:51 UT (#)
TS 80mm APO + ZWO ASI178MC
Auto-guided using 12" LX200R + ST-10XME & PHD2
 
NGC 4216 - Earlier Image (Jan 2020)
15 mins total exposure time (12" LX200)
NGC 4216 (catalog mag +10.9)
PGC 39247 (catalog mag +15.6), PGC 1425156 (catalog mag +18.0)
Image
Annotated CCD Image (100% size, log scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, C Filter
2020-01-01 01:33 UT (#734415-19)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 

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NGC 4914  - Elliptical Galaxy with Type Ia Supernova 2026fjc

NGC 4914 with SN 2026fjc (Canes Venatici)
SN 2026fjc (Type: Ia) discovered 2026-03-12.080 UT by ATLAS
Alias: ATLAS26cwi, ZTF26aakqkpn, GOTO26ceh, WFST260310bkxqt
Discovery Magnitude 18.475 (wide-ATLAS Filter)
vs Prior Non-Detection Limiting Magnitude 19.35 (orange-ATLAS Filter)
( TNS 2026fjc )
 
NGC 4914 with SN 2026fjc - 2026-04-03 (T+22.9d)
Image below (2026-04-03.981) was taken 22.9 days after discovery of 2026fjc
Position of earlier supernova (distinct) is shown by white cross-hairs
Measured Magnitude +14.37 (Clear Filter)
Image
Annotated CCD Image (125% size, log scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-03 23:39 UT (#1416054-57)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2026fjc (in NGC 4914) on Supernovae 2026 Page  >>

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UGC 5607  - Spiral Galaxy with Type Ia Supernova 2026kc

UGC 5607 with SN 2026kc (Sextans)
SN 2026kc (Type: Ia) discovered 2026-01-10.087 UT by ATLAS
Alias: ATLAS26aej, GOTO26dc, ZTF26aaaehuj
Discovery Magnitude 18.78 (L-GOTO Filter)
vs Prior Non-Detection Limiting Magnitude 19.5 (L-GOTO Filter)
( TNS 2026kc )
 
UGC 5607 with SN 2026kc - 2026-04-03 (T+83.8d)
Image below (2026-04-03.855) was taken 83.8 days after discovery of 2026kc
Position of earlier supernova (very faint) is shown by white cross-hairs
Estimated Magnitude +17.7 (Clear Filter)
Image
Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-03 20:40 UT (#1416005-09)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
UGC 5607 with SN 2026kc - Earlier Image, 2026-01-18 (T+8.1d)
Image below (2026-01-18.154) was taken 8.1 days after discovery of 2026kc

Position of earlier supernova (distinct) is shown by white cross-hairs
Measured Magnitude +15.68 (Clear Filter)
Image
Annotated CCD Image (150% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-01-18 03:45 UT (#1392013-14)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2026kc (in UGC 5607) on Supernovae 2026 Page  >>

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UGC 9533  - Spiral Galaxy with Type unconf Transient AT 2026hvo  (non-detection)

UGC 9533 with AT 2026hvo (Bootes)
AT 2026hvo (Type: unconf) discovered 2026-03-29.917 UT by Paolo Demaria
Discovery Magnitude 15 (L- Filter)
vs Prior Non-Detection Limiting Magnitude ( Filter)
Captured with Seestar S50 during photometric session on EL Boo
( TNS 2026hvo )
 
UGC 9533 with AT 2026hvo - 2026-04-03 (T+5.0d)
Image below (2026-04-03.887) was taken 5.0 days after discovery of 2026hvo
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +19.3 (Clear Filter)
Image
Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-03 21:25 UT (#1416018-22)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of AT 2026hvo on Transients 2026 Page  >>

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NGC 3660  - Spiral Galaxy with Type II Supernova 2026cff

NGC 3660 with SN 2026cff (Crater)
SN 2026cff (Type: II) discovered 2026-02-06.337 UT by ATLAS
Alias: ZTF26aaffpvx, ATLAS26bkl, GOTO26anl
Discovery Magnitude 17.0032 (r-ZTF Filter)
vs Prior Non-Detection Limiting Magnitude 18.9768 (r-ZTF Filter)
Early SN candidate (r-rise > 0.51+-0.01 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF26aaffpvx
( TNS 2026cff )
 
NGC 3660 with SN 2026cff - 2026-04-03 (T+56.6d)
Image below (2026-04-03.946) was taken 56.6 days after discovery of 2026cff
Position of earlier supernova (faint) is shown by white cross-hairs
Estimated Magnitude +16.2 (Clear Filter)
Image
Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-03 22:45 UT (#1416047-48)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2026cff (in NGC 3660) on Supernovae 2026 Page  >>

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NGC 3689  - Spiral Galaxy with Type Ib Supernova 2026gwx

NGC 3689 with SN 2026gwx (Leo)
SN 2026gwx (Type: Ib) discovered 2026-03-20.236 UT by ZTF
Alias: ZTF26aaodgsa
Discovery Magnitude 20.8896 (r-ZTF Filter)
vs Prior Non-Detection Limiting Magnitude 20.921 (g-ZTF Filter)
Bright (m_peak <= 18.5) transient candidate identified autonomously
by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167).
( TNS 2026gwx )
 
NGC 3689 - Spiral Galaxy with SN2026gwx (T+14.7d)
Image
Annotated CCD Image (50% size, square root scale)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-03 21:43 UT (#1416026-28)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
NGC 3689 with SN 2026gwx - 2026-04-03 (T+14.7d)
Image below (2026-04-03.901) was taken 14.7 days after discovery of 2026gwx
Position of earlier supernova (distinct) is shown by white cross-hairs
Measured Magnitude +14.77 (Clear Filter)
Image
Annotated CCD Image (150% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-03 21:43 UT (#1416026-28)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2026gwx (in NGC 3689) on Supernovae 2026 Page  >>

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NGC 4205  - Spiral Galaxy with Type Ia Supernova 2026fvx

NGC 4205 with SN 2026fvx (Draco)
SN 2026fvx (Type: Ia) discovered 2026-03-17.986 UT by ATLAS
Alias: ZTF26aamqluf, ATLAS26dgt
Discovery Magnitude 19.46 (Clear- Filter)
vs Prior Non-Detection Limiting Magnitude 19.97 (Clear- Filter)
( TNS 2026fvx )
 
NGC 4205 with SN 2026fvx - 2026-04-03 (T+16.9d)
Image below (2026-04-03.922) was taken 16.9 days after discovery of 2026fvx
Position of earlier supernova (distinct) is shown by white cross-hairs
Measured Magnitude +12.38 (Clear Filter)
Image
Annotated CCD Image (125% size, square root scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-03 22:13 UT (#1416033-35)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
Images of SN 2026fvx (in NGC 4205) on Supernovae 2026 Page  >>

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NGC 4206  - Spiral Galaxy

NGC 4206 (Virgo)
Ast.Now Deep Sky Challenge Apr 2026
[ Deep Sky Challanges (Ast.Now)
 
NGC 4206 - Spiral Galaxy
Image
Annotated CCD Image (50% size, square root scale)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-03 21:08 UT (#1416013-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2
 
NGC 4206 - Detail
Image
CCD Image (100% size, square root scale, cropped)
Image details as above
 

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