David's Astronomy - Astronomical Transients 2026

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Astronomical Transients - 2026

Transients
2025

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Transients
2026

This page documents observations and images of Astronomical Transients (AT) with discovery dates in 2026.
(Note: Some images may roll over into the following 1-3 years)
(Note: Supernovae in 2026 are presented on a separate page : SN 2026 )

| Galactic Transients | M31 Transients | M33 Transients | Other Extragalactic Transients |

Galactic Transients (2026)
     Name, type, discovery date

AT 2026ceu - Type CV? Transient (2026-02-05)

AT 2026ciw - Transient (2026-02-08)  (non-detection)

AT 2026coj - Type CV? Transient (2026-02-08)

AT 2026cpv - Type HPM Transient (2026-02-09)

AT 2026cqc - CV Type Transient (2026-02-09)

AT 2026dfh - Type CV? Transient (2026-02-11) (non-detection)

AT 2026eva - Type CV? Transient (2026-03-03)

AT 2026evo - Transient (2026-03-04)

AT 2026fkw - CV Type Transient (2026-03-12)

AT 2026gze - CV Type Transient (2026-03-21)

AT 2026gzl - Type CV? Transient (2026-03-23)

AT 2026hix - Type CV? Transient (2026-03-25)

AT 2026hur - Type CV? Transient (2026-03-29)

AT 2026hzf - Unconfirmed Transient (2026-03-31)  (non-detection)

AT 2026iul - CV Type Transient (2026-04-07)

AT 2026jcv - CV Type Transient (2026-04-09)

AT 2026juw - CV Type Transient (2026-04-16)

AT 2026jyw - Transient (2026-04-17)

AT 2026kay - Transient (2026-04-12)

AT 2026lck - Type Nova? Transient (2026-04-24)

AT 2026lxf - CV Type Transient (2026-05-08)

Extragalactic Transients (2026)
     Name, type, discovery date, host galaxy (if relevant)

M31 Transients

AT 2026gs - Transient (2026-01-08) in M31  (non-detection)

M31N 2026-02a- Extragalactic Nova (2026-02-20) in M31  (non-detection)

M31N 2026-04a?- Extragalactic Nova (2026-04-08) in M31  (non-detection)

M31N 2026-04b?- Extragalactic Nova (2026-04-23) in M31  (non-detection)

M31N 2026-04c?- Extragalactic Nova (2026-04-24) in M31

M33 Transients

- None

Other Extragalactic Transients

AT 2026X - Transient (2026-01-04) in M99

AT 2026cex - Transient (2026-01-30) in NGC 2398

AT 2026epv - Transient (2026-02-27) in UGC 622

AT 2026gua - Transient (2026-03-14) in UGC 8457

AT 2026hvo - Unconfirmed Transient (2026-03-29) in UGC 9533  (non-detection)

AT 2026kux - Transient (2026-04-24) in UGC 12040

Galactic Transients (2026)

AT 2026ceu - Type CV? Transient (discovered 2026-02-05)

AT 2026ceu (Lyra)
AT 2026ceu (Type: CV?) discovered 2026-02-05.481 UT by GEOTS
Alias: GEOTS-Balaji-2026-001
Discovery Magnitude 15.2 (Clear- Filter)
vs Prior Non-Detection Limiting Magnitude 18 (Clear- Filter)
Discovered in Lyr using 14" f/2.0 Astrograph at Golden Ears Observatory
(MPC code U55). CV candidate with a 1.0 mag increase compared to the PS1 reference magnitude
( TNS 2026ceu )

AT 2026ceu - 2026-02-28 (T+22.7d)
Image below (2026-02-28.158) was taken 22.7 days after discovery of 2026ceu
Position of earlier transient (very faint) is shown by white cross-hairs
Measured Magnitude +14.7 (Clear Filter) - very uncetain photometry.
Bright glare from Vega (mag 0.0)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-02-28 03:57 UT (#1396213-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026ceu - 2026-03-04 (T+26.6d)
Image below (2026-03-04.089) was taken 26.6 days after discovery of 2026ceu
Position of earlier transient (very faint) is shown by white cross-hairs
Limiting Magnitude +15.8 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-04 02:17 UT (#1399221-25)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026ciw - Transient (discovered 2026-02-08) (non-detection)

AT 2026ciw (Canes Venatici)
Discovery Magnitude 15.2 (Other- Filter)
vs Prior Non-Detection Limiting Magnitude 18.7 (Other- Filter)
OT,no outbursts in MASTER history, nothing in VIZIER = ampl>7.8mag *PanSTARRs 24m limit in history)
( TNS 2026ciw )

AT 2026ciw - 2026-02-27 (T+18.8d)
Image below (2026-02-27.069) was taken 18.8 days after discovery of 2026ciw
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +19.1 (Clear Filter)
with adjacentfaint galaxies, PGC 48239, (catalog mag +16.9),
PGC 2039645 (catalog mag +16.4), PGC 2039324 (catalog mag +17.2)

Annotated CCD Image (100% size, linear scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-02-27 01:43 UT (#1395217-18)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026ciw - 2026-02-27 (T+19.7d)
Image below (2026-02-27.947) was taken 19.7 days after discovery of 2026ciw
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +19.0 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-02-27 22:51 UT (#1396067-70)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026coj - Type CV? Transient (discovered 2026-02-08)

AT 2026coj (Monoceros)
AT 2026coj (Type: CV?) discovered 2026-02-08.809 UT by XOSS
Alias: KATS26C004, TCP J08011102-0343141
Discovery Magnitude 15.1 (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/kats26c004.html
( TNS 2026coj )

AT2026coj - Light Curve

AT 2026coj - 2026-02-13 (T+5.1d)
Image below (2026-02-13.910) was taken 5.1 days after discovery of 2026coj
Position of earlier transient (fain but distinctt) is shown by white cross-hairs
Measured Magnitude +14.55 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-02-13 21:59 UT (#1393068-72)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026coj - 2026-02-17 (T+9.2d)
Image below (2026-02-17.992) was taken 9.2 days after discovery of 2026coj
Position of earlier transient (faint, fading) is shown by white cross-hairs
Measured Magnitude +15.13 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-02-17 23:57 UT (#1394104-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026coj - 2026-03-03 (T+23.1d)
Image below (2026-03-03.927) was taken 23.1 days after discovery of 2026coj
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +16.31 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-03 22:23 UT (#1399117-21)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026coj - 2026-03-09 (T+29.2d)
Image below (2026-03-09.963) was taken 29.2 days after discovery of 2026coj
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +16.51 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-09 23:10 UT (#1404025-26)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026cpv - Type HPM Transient (discovered 2026-02-09)

AT 2026cpv (Cygnus)
AT 2026cpv (Type: HPM) discovered 2026-02-09.508 UT by MASTER
Alias: MASTER OT J192256.61+460501.0
Discovery Magnitude 15.8 (Other- Filter)
vs Prior Non-Detection Limiting Magnitude 19.7 (Other- Filter)
star with proper motion and with 0.3mag variability per 1 hour
( TNS 2026cpv )

AT2026cpv - Light Curve

AT 2026cpv - 2026-02-28 (T+18.5d)
Image below (2026-02-28.042) was taken 18.5 days after discovery of 2026cpv
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +15.65 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-02-28 01:05 UT (#1396107-09)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026cpv - 2026-03-03 (T+21.6d)
Image below (2026-03-03.111) was taken 21.6 days after discovery of 2026cpv
Position of earlier transient (faint but distinct, stable) is shown by white cross-hairs
Measured Magnitude +15.65 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
14 x 90s exposure (average combine), 3x3 binning, Clear Filter
2026-03-03 02:52 UT (#1398189-202)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026cpv - 2026-03-08 (T+26.5d)
Image below (2026-03-08.035) was taken 26.5 days after discovery of 2026cpv
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +15.49 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 90s exposure (average combine), 3x3 binning, Clear Filter
2026-03-08 00:55 UT (#1402112-16)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026cpv - 2026-03-13 (T+31.5d)
Image below (2026-03-13.035) was taken 31.5 days after discovery of 2026cpv
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +15.63 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
19 x 90s exposure (average combine), 3x3 binning, Clear Filter
2026-03-13 01:07 UT (#1405090-108)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026cpv - 2026-03-28 (T+46.6d)
Image below (2026-03-28.086) was taken 46.6 days after discovery of 2026cpv
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +15.59 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 90s exposure (average combine), 3x3 binning, Clear Filter
2026-03-28 02:09 UT (#1411121-26)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026cpv - 2026-03-29 (T+48.4d)
Image below (2026-03-29.924) was taken 48.4 days after discovery of 2026cpv
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +15.67 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
36 x 90s exposure (average combine), 3x3 binning, Clear Filter
2026-03-29 23:48 UT (#1413043-148)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026cqc - CV Type Transient (discovered 2026-02-09)

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 )

AT2026cqc - Light Curve

AT 2026cqc - 2026-02-28 (T+18.5d)
Image below (2026-02-28.055) was taken 18.5 days after discovery of 2026cqc
Position of earlier transient (faint) is shown by white cross-hairs
Estimated Magnitude +16.4 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-02-28 01:22 UT (#1396112-16)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026cqc - 2026-03-04 (T+22.5d)
Image below (2026-03-04.075) was taken 22.5 days after discovery of 2026cqc
Position of earlier transient (very faint) is shown by white cross-hairs
Measured Magnitude +16.6 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-03-04 01:51 UT (#1399206-10)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026cqc - 2026-03-28 (T+46.5d)
Image below (2026-03-28.067) was taken 46.5 days after discovery of 2026cqc
Position of earlier transient (very faint) is shown by white cross-hairs
Estimated Magnitude +16.7 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-03-28 01:39 UT (#1411114-18)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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)

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

AT 2026cqc - 2026-04-06 (T+55.5d)
Image below (2026-04-06.071) was taken 55.5 days after discovery of 2026cqc
Position of earlier transient (very faint) is shown by white cross-hairs
Estimated Magnitude +16.8 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-06 01:45 UT (#1417106-10)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026dfh - Type CV? Transient (discovered 2026-02-11) (non-detection)

AT 2026dfh (Canis Minor)
AT 2026dfh (Type: CV?) discovered 2026-02-11.762 UT by XOSS
Alias: KATS26C007
Discovery Magnitude 16.63 (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/kats26c007.html
( TNS 2026dfh )

AT 2026dfh - 2026-03-02 (T+19.2d)
Image below (2026-03-02.917) was taken 19.2 days after discovery of 2026dfh
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +16.7 (Clear Filter)
Poor quality image (bright moonlit sky background, single frame)

Annotated CCD Image (100% size, linear scale, cropped)
180s exposure (single frame), 3x3 binning, Clear Filter
2026-03-02 22:01 UT (#1398043)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026eva - Type CV? Transient (discovered 2026-03-03)

AT 2026eva (Orion)
AT 2026eva (Type: CV?) discovered 2026-03-03.154 UT by GEOTS
Alias: GEOTS-Balaji-2026-002
Discovery Magnitude 16.6 (Clear- Filter)
vs Prior Non-Detection Limiting Magnitude 18 (Clear- Filter)
Discovered in Ori using 14" f/2.0 Astrograph at Golden Ears Observatory (MPC code U55).
Group reports a variable star candidate not currently archived in the VSX database.
Analysis of ASAS-SN (All-Sky Automated Survey for SuperNovae) light curves
reveals a brightness fluctuation exceeding 1.0 magnitude,
suggesting a potential long-period variable or high-amplitude eclipsing system.
( TNS 2026eva )

AT2026eva - Light Curve

AT 2026eva - 2026-03-06 (T+3.7d)
Image below (2026-03-06.864) was taken 3.7 days after discovery of 2026eva
Position of earlier transient ( ) is shown by white cross-hairs
Measured Magnitude +16.23 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-06 20:51 UT (#1401039-43)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026eva - 2026-03-07 (T+4.7d)
Image below (2026-03-07.881) was taken 4.7 days after discovery of 2026eva
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +16.30 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-07 21:15 UT (#1402048-51)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026eva - 2026-03-08 (T+5.8d)
Image below (2026-03-08.940) was taken 5.8 days after discovery of 2026eva
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +16.32 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-08 22:36 UT (#1403072-73)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026eva - 2026-03-19 (T+16.7d)
Image below (2026-03-19.864) was taken 16.7 days after discovery of 2026eva
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +16.29 (Clear Filter)

Annotated CCD Image (100% size, linear scale (auto-stretched), cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-19 20:53 UT (#1409017-21)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026eva - 2026-03-31 (T+28.7d)
Image below (2026-03-31.842) was taken 28.7 days after discovery of 2026eva
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +16.27 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-31 20:19 UT (#1414005-08)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026eva - 2026-04-12 (T+40.8d)
Image below (2026-04-12.921) was taken 40.8 days after discovery of 2026eva
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +16.44 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-12 22:14 UT (#1420090-94)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026eva - 2026-04-18 (T+46.7d)
Image below (2026-04-18.884) was taken 46.7 days after discovery of 2026eva
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +16.39 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-18 21:18 UT (#1423008-10)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026evo - Transient (discovered 2026-03-04)

AT 2026evo (Triangulum)
AT 2026evo (Type: unk) discovered 2026-03-04.223 UT by ATLAS
Alias: ATLAS26con
Discovery Magnitude 16.528 (orange-ATLAS Filter)
vs Prior Non-Detection Limiting Magnitude 18.62 (orange-ATLAS Filter)
( TNS 2026evo )

AT2026evo - Light Curve

AT 2026evo - 2026-03-06 (T+2.6d)
Image below (2026-03-06.821) was taken 2.6 days after discovery of 2026evo
Position of reported transient (distinct) is shown by white cross-hairs
Measured Magnitude +16.46 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-06 19:51 UT (#1401013-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026evo - 2026-03-07 (T+3.6d)
Image below (2026-03-07.843) was taken 3.6 days after discovery of 2026evo
Position of earlier transient (distinct) is shown by white cross-hairs
Measured Magnitude +16.59 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-07 20:21 UT (#1402027-31)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026evo - 2026-03-08 (T+4.6d)
Image below (2026-03-08.854) was taken 4.6 days after discovery of 2026evo
Position of earlier transient (distinct, fading) is shown by white cross-hairs
Measured Magnitude +16.91 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-08 20:39 UT (#1403026-30)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026evo - 2026-03-12 (T+8.7d)
Image below (2026-03-12.912) was taken 8.7 days after discovery of 2026evo
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +17.42 (Clear Filter)
Poor quality image (poor transparency / poor seeing)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-12 22:00 UT (#1405035-38)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026evo - 2026-03-19 (T+15.7d)
Image below (2026-03-19.894) was taken 15.7 days after discovery of 2026evo
Position of earlier transient (very faint) is shown by white cross-hairs
Estimated Magnitude +18.3 (Clear Filter)

Annotated CCD Image (100% size, linear scale (auto-stretched), cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-19 21:37 UT (#1409033-37)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026fkw - CV Type Transient (discovered 2026-03-12)

AT 2026fkw (Libra)
AT 2026fkw (Type: CV) discovered 2026-03-12.881 UT by jiashuo Zhang
Alias: STSP J154537.89-203632.8, LP 803-27
Discovery Magnitude 16.24 (Clear Filter)
vs Prior Non-Detection Limiting Magnitude ( Filter)
We report the discovery of a candidate dwarf nova.
( TNS 2026fkw )

AT 2026fkw - 2026-03-21 (T+8.3d)
Image below (2026-03-21.160) was taken 8.3 days after discovery of 2026fkw
Position of reported transient (faint) is shown by white cross-hairs
Measured Magnitude +15,45 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-03-21 03:54 UT (#1410185-89)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026fkw - 2026-04-02 (T+20.2d)
Image below (2026-04-02.115) was taken 20.2 days after discovery of 2026fkw
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +15.53 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-02 02:47 UT (#1415130-33)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026gze - CV Type Transient (discovered 2026-03-21)

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

AT 2026gze - 2026-03-31 (T+10.1d)
Image below (2026-03-31.890) was taken 10.1 days after discovery of 2026gze
Position of earlier transient (faint but distinct) is shown by white cross-hairs
Measured Magnitude +15.42 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-03-31 21:24 UT (#1414028-31)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026gze - 2026-04-13 (T+22.2d)
Image below (2026-04-13.021) was taken 22.2 days after discovery of 2026gze
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +18.7 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-13 00:33 UT (#1420162-66)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026gzl - Type CV? Transient (discovered 2026-03-23)

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)
Group reports the discovery of a candidate dwarf nova.
( TNS 2026gzl )

AT 2026gzl - 2026-03-28 (T+4.9d)
Image below (2026-03-28.051) was taken 4.9 days after discovery of 2026gzl
Position of earlier transient (very faint) is shown by white cross-hairs
Measured Magnitude +16.99 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-28 01:22 UT (#1411107-11)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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

AT 2026gzl - 2026-03-30 (T+6.9d)
Image below (2026-03-30.065) was taken 6.9 days after discovery of 2026gzl
Position of earlier transient (very faint) is shown by white cross-hairs
Measured Magnitude +17.06 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-30 01:43 UT (#1413176-80)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026hix - Type CV? Transient (discovered 2026-03-25)

AT 2026hix (Canis Minor)
AT 2026hix (Type: CV?) discovered 2026-03-25.730 UT by XOSS
Alias: KATS26F003
Discovery Magnitude 16.23 (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/kats26f003.html
( TNS 2026hix )

AT2026hix - Light Curve

AT 2026hix - 2026-03-31 (T+6.1d)
Image below (2026-03-31.858) was taken 6.1 days after discovery of 2026hix
Position of earlier transient (very faint) is shown by white cross-hairs
Measured Magnitude +17.16 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-31 20:43 UT (#1414012-15)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026hix - 2026-04-01 (T+7.2d)
Image below (2026-04-01.973) was taken 7.2 days after discovery of 2026hix
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +17.1 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-01 23:30 UT (#1415037-41)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026hix - 2026-04-18 (T+24.2d)
Image below (2026-04-18.906) was taken 24.2 days after discovery of 2026hix
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +18.7 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-18 21:54 UT (#1423025-29)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026hur - Type CV? Transient (discovered 2026-03-29)

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 )

AT2026hur - Light Curve

AT 2026hur - 2026-04-02 (T+3.2d)
Image below (2026-04-02.084) was taken 3.2 days after discovery of 2026hur
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +16.11 (Clear Filter)

Annotated CCD Image (100% 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

AT 2026hur - 2026-04-02 (T+3.2d)
Image below (2026-04-02.084) was taken 3.2 days after discovery of 2026hur
Object shown by white cross-hairs is believed to be the reported transient,
but is slightly offset from its reported coordinates
Another transient is possibly present in image at position indicated by yellow cross-hair.
Possibility is that the reported transient might have been an asteroid,
rather the dwarf nova suggested by the discoveries

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

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 tof object (white cross-hairs and yellow cross-hairs)
since images at 2026-04-02.084 rule out any asteroid origin.

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

AT 2026hur - 2026-04-10 (T+11.2d)
Image below (2026-04-10.094) was taken 11.2 days after discovery of 2026hur
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +16.79 (Clear Filter)

Annotated CCD Image (175% size, linear scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-10 02:20 UT (#1418092-94)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026hur - 2026-04-13 (T+14.2d)
Image below (2026-04-13.040) was taken 14.2 days after discovery of 2026hur
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +17.06 (Clear Filter)

Annotated CCD Image (175% size, linear scale, cropped)
180s exposure (single frame), 3x3 binning, Clear Filter
2026-04-13 00:58 UT (#1420175)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026hur - 2026-04-18 (T+19.3d)
Image below (2026-04-18.111) was taken 19.3 days after discovery of 2026hur
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +17.23 (Clear Filter)

Annotated CCD Image (175% size, linear scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-18 02:45 UT (#1422154-56)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026hur - 2026-04-23 (T+24.2d)
Image below (2026-04-23.066) was taken 24.2 days after discovery of 2026hur
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +17.38 (Clear Filter)

Annotated CCD Image (175% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-23 01:44 UT (#1425093-97)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026hur - 2026-04-29 (T+30.2d)
Image below (2026-04-29.095) was taken 30.2 days after discovery of 2026hur
Position of earlier transient (barely visible) is shown by white cross-hairs
Estimated Magnitude +18.5 (Clear Filter)

Annotated CCD Image (175% size, linear scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-29 02:22 UT (#1426083-85)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026hur - 2026-05-08 (T+39.2d)
Image below (2026-05-08.074) was taken 39.2 days after discovery of 2026hur
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +18.8 (Clear Filter)

Annotated CCD Image (175% size, linear scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-05-08 01:50 UT (#1429063-64)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026hzf - Unconfirmed Transient (discovered 2026-03-31) (non-detection)

AT 2026hzf (Libra)
AT 2026hzf (Type: unconf) discovered 2026-03-31.398 UT by Firstlight Bot
Alias: FL_ZTF26aaqvnas_3376397562915015009
Discovery Magnitude 15.516 (g-ZTF Filter)
vs Prior Non-Detection Limiting Magnitude 18.959 (g-ZTF Filter)
firstlight auto (objId=ZTF26aaqvnas candid=3376397562915015009 fid=1)
( TNS 2026hzf )

AT 2026hzf - 2026-04-19 (T+18.6d)
Image below (2026-04-19.014) was taken 18.6 days after discovery of 2026hzf
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +19.6 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-19 00:28 UT (#1423099-103)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026iul - CV Type Transient (discovered 2026-04-07)

AT 2026iul (Cygnus)
AT 2026iul (Type: CV) discovered 2026-04-07.397 UT by GEOTS
Alias: GEOTS-PAPA-SHANKAR-2026-003
Discovery Magnitude 15.7 (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 a significant brightening of the Gaia DR3 variable star 2033708559892804224 (VSX).
Recent observations show an increase in magnitude of >2.3 when compared to the
last recorded observation from Golden Ears Observatory on 02 March 2026.
( TNS 2026iul )

AT2026iul - Light Curve

AT 2026iul - 2026-04-11 (T+4.6d)
Image below (2026-04-11.997) was taken 4.6 days after discovery of 2026iul
Position of earlier transient (distinct) is shown by white cross-hairs
Measured Magnitude +14.12 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
2 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-11 23:56 UT (#1419068-69)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026iul - 2026-04-12 (T+5.6d)
Image below (2026-04-12.991) was taken 5.6 days after discovery of 2026iul
Position of earlier transient (distinct) is shown by white cross-hairs
Measured Magnitude +14.15 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-12 23:50 UT (#1420126-30)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026iul - 2026-04-14 (T+6.7d)
Image below (2026-04-14.077) was taken 6.7 days after discovery of 2026iul
Position of earlier transient (faint but distinct) is shown by white cross-hairs
Measured Magnitude +14.13 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
60s exposure (single frame), 3x3 binning, Clear Filter
2026-04-14 01:51 UT (#1421077)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026iul - 2026-04-18 (T+10.6d)
Image below (2026-04-18.025) was taken 10.6 days after discovery of 2026iul
Position of earlier transient (faint but distinct) is shown by white cross-hairs
Measured Magnitude +14.19 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-18 00:39 UT (#1422083-87)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026iul - 2026-04-23 (T+15.6d)
Image below (2026-04-23.044) was taken 15.6 days after discovery of 2026iul
Position of earlier transient (faint but distinct) is shown by white cross-hairs
Measured Magnitude +14.25 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-23 01:07 UT (#1425073-77)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026iul - 2026-04-29 (T+21.7d)
Image below (2026-04-29.065) was taken 21.7 days after discovery of 2026iul
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +14.27 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-29 01:36 UT (#1426064-68)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026iul - 2026-05-08 (T+30.7d)
Image below (2026-05-08.084) was taken 30.7 days after discovery of 2026iul
Position of earlier transient (faint but distinct) is shown by white cross-hairs
Measured Magnitude +14.33 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-05-08 02:03 UT (#1429068-71)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026iul - 2026-05-18 (T+40.6d)
Image below (2026-05-18.024) was taken 40.6 days after discovery of 2026iul
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +14.46 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
3 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-05-18 00:36 UT (#1430042-44)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026iul - 2026-05-29 (T+51.6d)
Image below (2026-05-29.015) was taken 51.6 days after discovery of 2026iul
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +14.52 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-05-29 00:24 UT (#1433026-30)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026jcv - CV Type Transient (discovered 2026-04-09)

AT 2026jcv (Ophiuchus)
AT 2026jcv (Type: CV) discovered 2026-04-09.864 UT by XOSS
Alias: KATS26G002
Discovery Magnitude 16.87 (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/kats26g002.html
( TNS 2026jcv )

AT2026jcv - Light Curve

AT 2026jcv - 2026-04-13 (T+3.3d)
Image below (2026-04-13.137) was taken 3.3 days after discovery of 2026jcv
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +17.44 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-13 03:19 UT (#1420250-53)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026jcv - 2026-04-18 (T+8.2d)
Image below (2026-04-18.097) was taken 8.2 days after discovery of 2026jcv
Position of earlier transient (very faint) is shown by white cross-hairs
Measured Magnitude +17.98 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
2 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-18 02:22 UT (#1422145-48)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026jcv - 2026-04-19 (T+9.2d)
Image below (2026-04-19.113) was taken 9.2 days after discovery of 2026jcv
Position of earlier transient (very faint) is shown by white cross-hairs
Measured Magnitude +18.12 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-19 02:45 UT (#1423169-73)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026jcv - 2026-04-20 (T+10.2d)
Image below (2026-04-20.076) was taken 10.2 days after discovery of 2026jcv
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +17.3 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
60s exposure (single frame), 3x3 binning, Clear Filter
2026-04-20 01:49 UT (#1424041)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026jcv - 2026-04-22 (T+13.1d)
Image below (2026-04-22.996) was taken 13.1 days after discovery of 2026jcv
Position of earlier transient (very faint) is shown by white cross-hairs
Measured Magnitude +18.52 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-22 23:57 UT (#1425030-34)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026jcv - 2026-04-30 (T+20.2d)
Image below (2026-04-30.085) was taken 20.2 days after discovery of 2026jcv
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +18.5 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-30 02:05 UT (#1427143-46)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026juw - CV Type Transient (discovered 2026-04-16)

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 )

AT2026juw - Light Curve

AT 2026juw - 2026-04-18 (T+1.7d)
Image below (2026-04-18.033) was taken 1.7 days after discovery of 2026juw
Position of earlier transient (distinct) is shown by white cross-hairs
Measured Magnitude +12.41 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-18 00:51 UT (#1422090-94)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026juw - 2026-04-19 (T+2.7d)
Image below (2026-04-19.045) was taken 2.7 days after discovery of 2026juw
Position of earlier transient (distinct) is shown by white cross-hairs
Measured Magnitude +12.44 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-19 01:08 UT (#1423113-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026juw - 2026-04-30 (T+13.7d)
Image below (2026-04-30.009) was taken 13.7 days after discovery of 2026juw
Position of earlier transient (distinct) is shown by white cross-hairs
Measured Magnitude +12.34 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-04-30 00:16 UT (#1427087-91)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026jyw - Transient (discovered 2026-04-17)

AT 2026jyw (Ophiuchus)
AT 2026jyw (Type: unk) discovered 2026-04-17.498 UT by MASTER
Alias: MASTER OT J170428.77-215420.0
Discovery Magnitude 15.9 (Other- Filter)
vs Prior Non-Detection Limiting Magnitude 19.1 (Other- Filter)
MASTER-OAGH
( TNS 2026jyw )

AT2026jyw - Light Curve

AT 2026jyw - 2026-04-19 (T+1.6d)
Image below (2026-04-19.096) was taken 1.6 days after discovery of 2026jyw
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +15.71 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-19 02:27 UT (#1423162-66)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026jyw - 2026-04-29 (T+11.6d)
Image below (2026-04-29.079) was taken 11.6 days after discovery of 2026jyw
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +15.62 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-29 02:02 UT (#1426076-80)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026jyw - 2026-05-01 (T+13.6d)
Image below (2026-05-01.082) was taken 13.6 days after discovery of 2026jyw
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +15.68 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
3 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-05-01 02:07 UT (#1428124-28)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026kay - Transient (discovered 2026-04-12)

AT 2026kay (Ophiuchus)
AT 2026kay (Type: unk) discovered 2026-04-12.143 UT by ATLAS
Alias: ATLAS26eck, PS26bbr
Discovery Magnitude 16.906 (wide-ATLAS Filter)
vs Prior Non-Detection Limiting Magnitude 18.67 (orange-ATLAS Filter)
( TNS 2026kay )

AT 2026kay - 2026-05-01 (T+18.9d)

Annotated CCD Image (100% size, linear scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-05-01 01:46 UT (#1428117-21)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026kay - 2026-05-01 (T+18.9d)
Image below (2026-05-01.067) was taken 18.9 days after discovery of 2026kay
Position of earlier transient (very faint) is shown by white cross-hairs
Measured Magnitude +18.29 (Clear Filter)

Annotated CCD Image (175% size, linear scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-05-01 01:46 UT (#1428117-21)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026lck - Type Nova? Transient (discovered 2026-04-24)

AT 2026lck (Aquila)
AT 2026lck (Type: Nova?) discovered 2026-04-24.413 UT by ZTF
Alias: DCAP32, ZTF26aatyimr
Discovery Magnitude 15.89 (i-ZTF Filter)
vs Prior Non-Detection Limiting Magnitude ( Filter)
Group reports the discovery of a candidate dwarf nova.(DCAP pipeline DCAP32=ZTF26aatyimr)
ASASSN-17cf associated with the target.
( TNS 2026lck )

AT2026lck - Light Curve

AT 2026lck - 2026-05-18 (T+23.6d)
Image below (2026-05-18.053) was taken 23.6 days after discovery of 2026lck
Position of earlier transient (faint but distinct) is shown by white cross-hairs
Measured Magnitude +13.48 (Clear Filter)
Poor quality image (cloud/sky gradient, single frame)

Annotated CCD Image (100% size, linear scale, cropped)
180s exposure (single frame), 3x3 binning, Clear Filter
2026-05-18 01:17 UT (#1430061)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026lck - 2026-05-28 (T+33.6d)
Image below (2026-05-28.033) was taken 33.6 days after discovery of 2026lck
Position of earlier transient (distinct) is shown by white cross-hairs
Measured Magnitude +13.47 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-05-28 00:53 UT (#1432033-35)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026lxf - CV Type Transient (discovered 2026-05-08)

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 )

AT2026lxf - Light Curve

AT 2026lxf - 2026-05-30 (T+21.7d)
Image below (2026-05-30.047) was taken 21.7 days after discovery of 2026lxf
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +15.11 (Clear Filter)

Annotated CCD Image (100% size, linear scale, cropped)
2 x 60s exposure (average combine), 3x3 binning, Clear Filter
2026-05-30 01:09 UT (#1434069-70)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

Extragalactic Transients (2026)

M31 Transients (2026)

AT 2026gs - Transient (discovered 2026-01-08) in M31 (non-detection)

M31 with AT 2026gs (Andromeda)
AT 2026gs (Type: unk) discovered 2026-01-08.786 UT by Jingyuan Zhao
Alias: PNV J00425201+4114292
Discovery Magnitude 18.37 (Clear- Filter)
vs Prior Non-Detection Limiting Magnitude ( Filter)
Jianlin Xu, Jingyuan Zhao, Mi Zhang report discovery of a possible nova in M31.
Image obtained by 0.43-m f/6.8 Corrected Dall-Kirkham robotic telescope at
Alnitak Remote Observatories in Nerpio, Spain,
exposured 200s with Clear filter, around 2026 Jan. 08.78633 UT, mag = 18.37 CV.
Observations were made using Alnitak Remote Observatories
robotic telescope network, Alnitak Research Telescope Access (ARTA) program.
( TNS 2026gs )

M31 with AT 2026gs - Reference Image
Position of AT 2026gs (not visible in this exposure) is shown by blue circle
Limits of M31 Spiral Galaxy is shown by pale cyan ellipse

Annotated CCD Image (16% size)
10s exposure, 1x1 binning
2026-03-02 20:26 UT
TS 80mm APO, ZWO ASI178MC

M31 with AT 2026gs - 2026-03-02 (T+53.1d)
Image below (2026-03-02.852) was taken 53.1 days after discovery of 2026gs

Annotated CCD Image (70% size, square root scale)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-02 20:32 UT (#1398031-33)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

M31 with AT 2026gs - 2026-03-02 (T+53.1d)
Image below (2026-03-02.852) was taken 53.1 days after discovery of 2026gs
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +16.5 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-02 20:32 UT (#1398031-33)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

M31N 2026-02a- Extragalactic Nova (discovered 2026-02-20) 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

M31 with M31N 2026-02a - 2026-03-03 (T+11.2d)
Position of reported transient (not visible) is shown by white cross-hairs

Annotated CCD Image (70% size, square root scale)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-03 23:35 UT (#1399147-48)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

M31 with M31N 2026-02a - 2026-03-03 (T+11.2d)
Image below (2026-03-03.981) was taken 11.2 days after discovery of M31N 2026-02a
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +16.0 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-03 23:35 UT (#1399147-48)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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

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

M31N 2026-04a?- Extragalactic Nova (discovered 2026-04-08) in M31 (non-detection)

M31 with M31N 2026-04a? (Andromeda)
M31N 2026-04a? (Type: EGN?) discovered 2026-04-08.079 UT by Kamil Hornoch et al.
Alias: PNV J00433836+4115324
[ Messier Objects ]

M31 w/M31N 2026-04a? - Cam2 Reference Image
Position of AT 2026gs (not visible in this exposure) is shown by blue circle
Limits of M31 Spiral Galaxy is shown by pale cyan ellipse

Annotated CMOS Image (16% size)
10s exposure, 1x1 binning
2026-04-19 0`:36 UT
TS 80mm APO + ZWO ASI178MC

M31 with M31N 2026-04a? - 2026-04-19 (T+11.0d)
Image below (2026-04-19.068) was taken 11.0 days after discovery of M31N 2026-04a?

Annotated CCD Image (70% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-19 01:47 UT (#1423142-46)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

M31 with M31N 2026-04a? - 2026-04-19 (T+11.0d)
Image below (2026-04-19.068) was taken 11.0 days after discovery of M31N 2026-04a?
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +18.4 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-19 01:47 UT (#1423142-46)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

M31N 2026-04b?- Extragalactic Nova (discovered 2026-04-23) in M31 (non-detection)

M31 with M31N 2026-04b? (Andromeda)
M31N 2026-04b? (Type: EGN?) discovered 2026-04-23.056 UT by Kamil Hornoch et al.
Alias: PNV J00433502+4146280
[ Messier Objects ]

M31 with M31N 2026-04b? (T+8.0d)

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-05-01 00:50 UT (#1428091-95)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

M31 with M31N 2026-04b? - 2026-05-01 (T+8.0d)
Image below (2026-05-01.028) was taken 8.0 days after discovery of M31N 2026-04b?
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +17.9 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-05-01 00:50 UT (#1428091-95)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

M31N 2026-04c?- Extragalactic Nova (discovered 2026-04-24) in M31

M31 with M31N 2026-04c? (Andromeda)
M31N 2026-04c? (Type: EGN?) discovered 2026-04-24.042 UT by Kamil Hornoch et al.
Alias: PNV J00425564+4114122, M31N 1960-12a, M31N 2013-05b, M31N 2019-07a
[ Messier Objects ]

M31 with M31N 2026-04c? - 2026-04-30 (T+6.0d)

Annotated CCD Image (70% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-30 00:55 UT (#1427102-06)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

M31 with M31N 2026-04c? - 2026-04-30 (T+6.0d)
Image below (2026-04-30.032) was taken 6.0 days after discovery of M31N 2026-04c?
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +16.8 (Clear Filter)

Annotated CCD Image (125% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-30 00:55 UT (#1427102-06)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

M33 Transients (2026)

Other Extragalactic Transients (2026)

AT 2026X - Transient (discovered 2026-01-04) in M99

M99 with AT 2026X (Coma Berenices)
AT 2026X (Type: unk) discovered 2026-01-04.664 UT by Yuan-Sheng Tsai
Discovery Magnitude 17.8 (L- Filter)
CDK17+Poseidon M
( TNS 2026X )

M99 - Spiral Galaxy

Annotated CCD Image (50% size, square root scale)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-01-13 23:57 UT (#1390170-74)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

M99 - Detail

Annotated CCD Image (100% size, square root scale, cropped)
Image details as above

M99 with AT 2026X - 2026-01-13 (T+9.3d)
Image below (2026-01-13.992) was taken 9.3 days after discovery of 2026X
Position of earlier transient (not separately distinguishable) is shown by white cross-hairs

Annotated CCD Image (100% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-01-13 23:57 UT (#1390170-74)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

M99 - Earlier Image (2025-03-29)

Annotated CCD Image (100% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2025-03-29 00:13 UT (#1306065-66)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026cex - Transient (discovered 2026-01-30) in NGC 2398

NGC 2398 w/AT 2026cex (Gemini)
AT 2026cex discovered 2026-01-30.405 UT by Masaki Tsuboi
Discovery Magnitude 15.8 (Clear- Filter)
vs Prior Non-Detection Limiting Magnitude 17.8 (Clear- Filter)
Offsets:104.7" W and 50.5" N of NGC 2398
( TNS 2026cex )

NGC 2398 - Spiral Galaxy

Annotated CCD Image (50% size, square root scale)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-02-13 21:39 UT (#1393062-65)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT2026cex - 2026-02-13 (T+14.5d)
Image below (2026-02-13.897) was taken 14.5 days after discovery of 2026cex

Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +17.38 (Clear Filter)
Transient object is not seen in DSS2 image in Aladin
It looks too far away from NGC 2398 to be associated with it.

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-02-13 21:39 UT (#1393062-65)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT2026cex - 2026-02-17 (T+18.5d)
Image below (2026-02-17.917) was taken 18.5 days after discovery of 2026cex
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +17.44 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-02-17 22:09 UT (#1394060-64)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026epv - Transient (discovered 2026-02-27) in UGC 622

UGC 622 with AT 2026epv (Andromeda)
AT 2026epv (Type: unk) discovered 2026-02-27.000 UT by Giancarlo Cortini
Discovery Magnitude 17.5 (Clear- Filter)
vs Prior Non-Detection Limiting Magnitude ( Filter)
Possible discovery by Giancarlo Cortini at Monte Maggiore Observatory Predappio Italy
Discovery date Feb 27 18:30 UT
( TNS 2026epv )

UGC 622 - Spiral Galaxy
Alias: PGC 3603 (catalog mag +14.2)
Bright star in FOV is HIP 4672 (catalog mag +7.1)

Annotated CCD Image (50% size, square root scale)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-03 19:30 UT (#1399016-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT2026epv - Light Curve

UGC 622 with AT 2026epv - 2026-03-03 (T+4.8d)
Image below (2026-03-03.810) was taken 4.8 days after discovery of 2026epv
Position of reported transient (not visible) is shown by white cross-hairs.
An object (not seen on DSS2 Colour and PanSTARRS DR1 images) is however
visible at an offset position shown by cyan cross hairs
It is unclear if coordinates of discovered transient were incorrectly reported
in the TNS Page or if the object is a slow moving minor planet, or a separate new transient.
Later analysis suggested that the coordinates on the
TNS Page were incorrectly reported.

Annotated CCD Image (150% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-03 19:30 UT (#1399016-17)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 622 with AT 2026epv - 2026-03-03 (T+4.8d)
Image below (2026-03-03.810) was taken 4.8 days after discovery of 2026epv
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +17.1 (Clear Filter)

UGC 622 with AT 2026epv - 2026-03-04 (T+5.9d)
Image below (2026-03-04.888) was taken 5.9 days after discovery of 2026epv
Position of earlier transient (faint) is shown by white cross-hairs
Estimated Magnitude +17.0 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-04 21:26 UT (#1400035-38)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 622 with AT 2026epv - 2026-03-06 (T+7.8d)
Image below (2026-03-06.847) was taken 7.8 days after discovery of 2026epv
Position of earlier transient (faint) is shown by white cross-hairs
Estimated Magnitude +16.6 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-06 20:29 UT (#1401031-35)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 622 with AT 2026epv - 2026-03-07 (T+8.9d)
Image below (2026-03-07.911) was taken 8.9 days after discovery of 2026epv
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +16.7 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-07 22:01 UT (#1402064-68)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 622 with AT 2026epv - 2026-03-08 (T+9.8d)
Image below (2026-03-08.839) was taken 9.8 days after discovery of 2026epv
Position of earlier transient (faint) is shown by white cross-hairs
Estimated Magnitude +16.7 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-08 20:17 UT (#1403019-23)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 622 with AT 2026epv - 2026-03-10 (T+11.2d)
Image below (2026-03-10.213) was taken 11.2 days after discovery of 2026epv
Position of earlier transient (faint) is shown by white cross-hairs
Estimated Magnitude +17.3 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-10 05:10 UT (#1404102-03)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 622 with AT 2026epv - 2026-03-12 (T+14.0d)
Image below (2026-03-12.980) was taken 14.0 days after discovery of 2026epv
Position of earlier transient (faint) is shown by white cross-hairs
Estimated Magnitude +16.7 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-12 23:40 UT (#1405075-79)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 622 with AT 2026epv - 2026-03-16 (T+17.2d)
Image below (2026-03-16.190) was taken 17.2 days after discovery of 2026epv
Position of earlier transient (faint) is shown by white cross-hairs
Estimated Magnitude +16.9 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-16 04:43 UT (#1407260-64)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 622 with AT 2026epv - 2026-03-19 (T+20.9d)
Image below (2026-03-19.880) was taken 20.9 days after discovery of 2026epv
Position of earlier transient ( ) is shown by white cross-hairs
Estimated Magnitude +17.2 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-19 21:16 UT (#1409025-29)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 622 with AT 2026epv - 2026-03-30 (T+31.1d)
Image below (2026-03-30.122) was taken 31.1 days after discovery of 2026epv
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +18.6 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-30 03:02 UT (#1413224-28)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026gua - Transient (discovered 2026-03-14) in UGC 8457

UGC 8457 with AT 2026gua (Coma Berenices)
AT 2026gua (Type: unk) discovered 2026-03-14.955 UT by Tomasz ÅšciÄ™Å¼or
Discovery Magnitude 16.52 (Clear- Filter)
vs Prior Non-Detection Limiting Magnitude ( Filter)
( TNS 2026gua )

UGC 8457 - Spiral Galaxy
[ Flat Galaxies ]

Annotated CCD Image (50% size, square root scale)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-27 22:51 UT (#1411029-32)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 8457 with AT 2026gua - 2026-03-27 (T+13.0d)
Image below (2026-03-27.947) was taken 13.0 days after discovery of 2026gua
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +19.4 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-03-27 22:51 UT (#1411029-32)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

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)

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

AT 2026hvo - Unconfirmed Transient in UGC 9533 (non-detection)

UGC 9533 with AT 2026hvo (Bootes)
Discovery date: 2026-03-29 22:00:00
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 - Spiral Galaxy
Alias: PGC 52872 (catalog mag +15.3

Annotated CCD Image (50% size, square root scale)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-01 00:53 UT (#1414096-100)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 9533 with AT 2026hvo - 2026-04-01 (T+2.1d)
Image below (2026-04-01.031) was taken 2.1 days after discovery of 2026hvo
Position of reported transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +19.1 (Clear Filter)
No indication of any object at position of reported transient. Transient is unconfirmed

Annotated CCD Image (150% size, square root scale, cropped)
5 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-01 00:53 UT (#1414096-100)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 9533 with AT 2026hvo - 2026-04-02 (T+3.1d)
Image below (2026-04-02.031) was taken 3.1 days after discovery of 2026hvo
Position of earlier transient (not visible) is shown by white cross-hairs
Non-Detection Limiting Magnitude +18.2 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-04-02 00:51 UT (#1415076-79)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT 2026kux - Transient (discovered 2026-04-24) in UGC 12040

UGC 12040 with AT 2026kux (Lacerta)
AT 2026kux (Type: unk) discovered 2026-04-24.204 UT by ATLAS
Alias: ATLAS26exf
Discovery Magnitude 18.422 (wide-ATLAS Filter)
vs Prior Non-Detection Limiting Magnitude 19.04 (wide-ATLAS Filter)
( TNS 2026kux )

UGC 12040 - Spiral Galaxy

Annotated CCD Image (50% size, square root scale)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-05-01 01:26 UT (#1428112-13)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

AT2026kux - Light Curve

UGC 12040 with AT 2026kux - 2026-05-01 (T+6.9d)
Image below (2026-05-01.058) was taken 6.9 days after discovery of 2026kux
Position of earlier transient (faint) is shown by white cross-hairs
Measured Magnitude +16.78 (Clear Filter)

Annotated CCD Image (150% size, square root scale, cropped)
2 x 180s exposure (average combine), 3x3 binning, Clear Filter
2026-05-01 01:26 UT (#1428112-13)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

UGC 12040 w/AT2026kux - Earlier Image (Pre-SN)

CCD Image (125% size, square root scale, cropped)
4 x 180s exposure (average combine), 3x3 binning, C Filter
2020-07-18 00:34 UT (#795045-48)
12" LX200R (at f/10.4) + ST-10XME
Auto-guided using TS 80mm APO, ZWO ASI178MC & PHD2

This Web Page:	Astronomical Transients - 2026
Last Updated :	2026-05-30
Site Owner :	David Richards
Home Page :	David's Astronomy Web Site

David's Astronomy Pages (Deep Sky) Astronomical Transients - 2026