David's Astronomy - Images 2026-03-28 (S1412)

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Images - Session 1412 (2026-03-28)

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Objects Session Notes

29P/Schwassmann-Wachmann - Comet

240P/NEAT - Comet  (non-detection)

AT 2026gze - CV Type Transient

AT 2026gzl - Type CV? Transient

IC 4556 - Elliptical Galaxy with Type Ia Supernova 2026fuz

M51 - Spiral Galaxy

NGC 4205 - Spiral Galaxy with Type Ia Supernova 2026fvx

UGC 3028 - Spiral Galaxy with Type Ia Supernova 2026gm  (non-detection)

Z 160-45 - Spiral Galaxy with Type Ia Supernova 2025abwt  (non-detection)

Variable Stars (photometric monitoring)

- R CrB, R CrB, CI Cyg, S Cyg, RZ LMi, RR Leo, ER UMa

Nearby Stars (astrometric monitoring)

- DX Cnc (Gliese 1111)

- Late Night Session (4.5 hr), ended early due to cloud/session suspension.

- 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 2026-03-28 >>

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Observing Result

29P/Schwassmann-Wachmann - Comet

29P/Schwassmann-Wachmann - 2026-03-28 (passing through Leo) Sun Distance 6.31 AU Earth Distance 5.37 AU (802.6 million km)		29P/Schwassmann-Wachmann - 2026-03-28 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra -14.5 arcsec/hr, Dec 5.8 arcsec/hr) Measured M2 Magnitude +16.08 (Clear Filter)

Annotated CCD Image (50% size, square root scale) 3 x 90s exposure (average combine), 3x3 binning, Clear Filter 2026-03-28 21:40 UT (#1412029-31) 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) 7 x 90s exposure (average combine), 3x3 binning, Clear Filter 2026-03-28 21:44 UT (#1412029-35) 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 >>

240P/NEAT - Comet (non-detection)

240P/NEAT - 2026-03-29 (passing through Auriga) Sun Distance 2.26 AU Earth Distance 2.42 AU (361.3 million km) Poor quality image (bright moonlit sky)		240P/NEAT - 2026-03-29 Detail Autoguided on offset star using PHD2 with Lock Shift set at the comet's rate of motion (Ra 62.7 arcsec/hr, Dec 17.2 arcsec/hr)

Annotated CCD Image (50% size, square root scale) 5 x 60s exposure (average combine), 3x3 binning, Clear Filter 2026-03-29 00:21 UT (#1412102-10) 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 2026-03-29 00:21 UT (#1412102-10) 12" LX200R (at f/10.4) + ST-10XME Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of Comet_240P_NEAT on Comets 2026 Page >>

AT 2026gze - CV Type Transient

AT 2026gze (Cancer)
AT 2026gze (Type: CV) discovered 2026-03-21.817 UT by LAST
Alias: TCP J08460573+1047397
Discovery Magnitude 14.5 (Clear- Filter)
vs Prior Non-Detection Limiting Magnitude 15.4 (Clear- Filter)
NMW-TexasTech transient survey
(135mm telephoto lens + unfiltered QHY600M CMOS camera).
The NMW-TexasTech survey operates at TTU Preston Gott Skyview Observatory
(Shallowater, Texas).
( TNS 2026gze )

AT 2026gze - 2026-03-28 (T+7.1d)
Image below (2026-03-28.894) was taken 7.1 days after discovery of 2026gze
Position of earlier transient (faint but distinct) is shown by white cross-hairs
Measured Magnitude +15.03 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
3 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-03-28 21:31 UT (#1412022-26)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2026gze on Transients 2026 Page >>

AT 2026gzl - Type CV? Transient

AT 2026gzl (Ophiuchus)
AT 2026gzl (Type: CV?) discovered 2026-03-23.166 UT by jiashuo Zhang
Alias: STSP J173452.99+060429.9
Discovery Magnitude 16.34 (Clear- Filter)
vs Prior Non-Detection Limiting Magnitude ( Filter)
We report the discovery of a candidate dwarf nova.
( TNS 2026gzl )

AT 2026gzl - 2026-03-29 (T+5.9d)
Image below (2026-03-29.052) was taken 5.9 days after discovery of 2026gzl
Position of earlier transient (very faint, fading) is shown by white cross-hairs
Measured Magnitude +17.13 (Clear Filter)
Poor quality image (bright moonlit sky, poor seeing)

Annotated CCD Image (100% size, linear scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-29 01:18 UT (#1412135-36)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of AT 2026gzl on Transients 2026 Page >>

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 w/SN2026fuz

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-28 23:16 UT (#1412067-71)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

IC 4556 with SN 2026fuz - 2026-03-28 (T+13.8d)
Image below (2026-03-28.963) was taken 13.8 days after discovery of 2026fuz
Position of reported supernova (faint) is shown by white cross-hairs
Measured Magnitude +17.35 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-28 23:16 UT (#1412067-71)
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 >>

M51 - Spiral Galaxy

M51 (Canes Venatici)
[ Messier Objects ]

Annotated CMOS Image (16% size, linear scale (auto-stretched))
20 x 60s exposure (average combine), 1x1 binning, gain 200, OSC
2026-03-29 02:56 UT (#)
TS 80mm APO + ZWO ASI178MC
Auto-guided using 12" LX200R + ST-10XME & PHD2

M51 (Canes Venatici)
20 min total exposure (80mm TS80 at f/6)

Annotated CMOS Image (35% size, linear scale (auto-stretched), cropped)
20 x 60s exposure (average combine), 1x1 binning, gain 200, OSC
2026-03-29 02:56 UT (#)
TS 80mm APO + ZWO ASI178MC
Auto-guided using 12" LX200R + ST-10XME & PHD2

M51 - Earlier Image (Feb 2020)
27 mins total exposure (12" LX200 at f/10.4)
Taken with Optolong L-eNhance dual narrowband filter

CCD Image (100% size, logscale, cropped)
9 x 180s exposure (average combine), 3x3 binning, DB Filter
2020-02-02 01:11 UT (#749172-80)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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 - 2026-03-28 (T+11.0d)
Image below (2026-03-28.947) was taken 11.0 days after discovery of 2026fvx
Position of earlier supernova (distinct) is shown by white cross-hairs
Measured Magnitude +12.75 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-28 22:52 UT (#1412060-64)
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 >>

UGC 3028 - Spiral Galaxy with Type Ia Supernova 2026gm (non-detection)

UGC 3028 with SN 2026gm (Perseus)
SN 2026gm (Type: Ia) discovered 2026-01-08.798 UT by XOSS
Alias: PSP26B, GOTO26cp, ATLAS26aff, MASTER OT J042437.37+335144.2
Discovery Magnitude 18.08 (Clear- Filter)
vs Prior Non-Detection Limiting Magnitude ( Filter)
SN candidate classified by XOSS.
Details can be found at http://xjltp.china-vo.org/psp26b.html
( TNS 2026gm )

UGC 3028 with SN 2026gm - 2026-03-28 (T+79.2d)
Image below (2026-03-28.997) was taken 79.2 days after discovery of 2026gm
Position of earlier supernova (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +16.4 (Clear Filter)
Poor quality image (bright moonlit sky background)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-29 00:03 UT (#1412093-97)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 3028 with SN 2026gm - Earlier Image, 2026-02-13 (T+36.1d)
Image below (2026-02-13.856) was taken 36.1 days after discovery of 2026gm

Position of earlier supernova (faint) is shown by white cross-hairs
Measured Magnitude +17.12 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-02-13 20:41 UT (#1393036-40)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2026gm (in UGC 3028) on Supernovae 2026 Page >>

Z 160-45 - Spiral Galaxy with Type Ia Supernova 2025abwt (non-detection)

Z 160-45 with SN 2025abwt (Coma Berenices)
SN 2025abwt (Type: Ia) discovered 2025-10-29.544 UT by ZTF
Alias: ZTF25acbeukb, ATLAS25obc
Discovery Magnitude 16.7193 (r-ZTF Filter)
vs Prior Non-Detection Limiting Magnitude 16.7885 (r-ZTF Filter)
Early SN candidate (r-rise > 0.82+-0.02 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/ZTF25acbeukb
( TNS 2025abwt )

Z 160-45 - Spiral Galaxy
Alias : PGC 44341 (catalog mag +15.8)
Also in same field of view are two galaxies
PGC 44394 (catalog mag +15.4) and PGC 44393 (catalog mag +16.0)

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-28 22:04 UT (#1412040-44)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Z 160-45 with SN 2025abwt - 2026-03-28 (T+150.4d)
Image below (2026-03-28.913) was taken 150.4 days after discovery of 2025abwt
Position of earlier supernova (not separately distinguishable, likely faded) is shown by white cross-hairs
Measured Magnitude (SN + Galaxy Nucleus) +15.0 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-28 22:04 UT (#1412040-44)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Images of SN 2025abwt (in Z 160-45) on Supernovae 2025 Page >>

This Web Page:	Images - Session 1412 (2026-03-28)
Last Updated :	2026-05-22
Site Owner :	David Richards
Home Page :	David's Astronomy Web Site

David's Astronomy Pages Images - Session 1412 (2026-03-28)