Showing results 1 to 50 out of 2,267
AstroNote 2026-144
Type: Object/s-Discovery/Classification
Released: 2026-05-18 23:05:33
ATLAS26fzv (AT2026nad): discovery of a nuclear transient in 2MASX J00310141-1338520 (54 Mpc)
A. Aamer (Arizona), S. Srivastav (Oxford), K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T…
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026nad [ATLAS26fzv]
RA, DEC:00:31:01.441, -13:38:51.90
(7.756003, -13.647749)
Redshift:
Type:
See object 2026nad [ATLAS26fzv]
Here we report the ATLAS discovery of the transient ATLAS26fzv (AT2026nad) in galaxy 2MASX J00310141-1338520 at magnitude m_c = 15.72 +/- 0.02. At a distance of 54 Mpc, the transient was discovered o…
AstroNote 2026-143
Type: Object/s-Discovery/Classification
Released: 2026-05-18 16:39:07
ATLAS26fxq (AT2026myp): discovery of a candidate SN in IC 5191 (95 Mpc)
A. Aamer (Arizona), K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026myp [ATLAS26fxq]
RA, DEC:22:15:03.694, +37:18:03.97
(333.765391, 37.301102)
Redshift:0.022
Type:SN Ia
See object 2026myp [ATLAS26fxq]
Here we report the ATLAS discovery of the transient ATLAS26fxq (AT2026myp) in galaxy IC 5191 at magnitude m_o = 18.82 +/- 0.11. At a distance of 95 Mpc, the transient was discovered on MJD = 61175.55…
AstroNote 2026-142
Type: Object/s-Discovery/Classification
Released: 2026-05-18 16:00:01
ePESSTO+ spectroscopic classification of optical transients
C. Aster (Cardiff), J. Quirola-Vásquez (Radboud), J. Khaulsay (Cardiff), M. Dennefeld (Sorbonne), N. Ihanec (ING), G. P…
Source Group: ePESSTO+
Keywords: Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026mlg [ATLAS26fok]
RA, DEC:14:13:17.140, -79:34:21.34
(213.321415, -79.572595)
Redshift:0.08
Type:SN Ia
See object 2026mlg [ATLAS26fok]
,
2026mjd [ZTF26aawfedw]
RA, DEC:15:35:05.182, +13:11:44.84
(233.771593, 13.195790)
Redshift:0.074
Type:SN
See object 2026mjd [ZTF26aawfedw]
,
2026mlm [ZTF26aavqwvz]
RA, DEC:13:34:36.493, -16:20:11.82
(203.652053, -16.336616)
Redshift:0.1
Type:SN IIn-pec
See object 2026mlm [ZTF26aavqwvz]
,
2026mxl [ATLAS26fuo]
RA, DEC:12:52:09.452, -21:51:40.16
(193.039383, -21.861156)
Redshift:0.023
Type:SN Ia-91bg-like
See object 2026mxl [ATLAS26fuo]
,
2026lpz [ATLAS26fgr]
RA, DEC:14:59:35.556, -04:53:05.25
(224.898151, -4.884792)
Redshift:0.04
Type:SN Ia
See object 2026lpz [ATLAS26fgr]
,
2026mkj [ZTF26aawdydq]
RA, DEC:19:52:57.092, -14:42:22.29
(298.237884, -14.706193)
Redshift:0.1
Type:SN Ia
See object 2026mkj [ZTF26aawdydq]
,
2026mtw [ZTF26aawkrmu]
RA, DEC:17:47:43.955, +18:07:55.84
(266.933144, 18.132178)
Redshift:0.04
Type:SN II
See object 2026mtw [ZTF26aawkrmu]
,
2026muv [ATLAS26frx]
RA, DEC:13:58:59.916, -52:18:37.35
(209.749651, -52.310374)
Redshift:0.013
Type:SN II
See object 2026muv [ATLAS26frx]
,
2026lvp [GOTO26ems]
RA, DEC:20:22:36.221, +10:37:40.54
(305.650921, 10.627928)
Redshift:0.07
Type:SN Ia
See object 2026lvp [GOTO26ems]
,
2026mjw [DCAP75]
RA, DEC:13:45:32.466, +06:11:22.36
(206.385276, 6.189544)
Redshift:0.177
Type:SN Ia
See object 2026mjw [DCAP75]
This report includes classifications of 5 Type Ia, 1 Type Ia-91bg-like, 2 Type II, 1 Type IIn-pec and 1 SN. We encourage followup observations.
AstroNote 2026-141
Type: Object/s-Discovery/Classification
Released: 2026-05-18 14:41:39
ATLAS26fuo (AT2026mxl): discovery of a candidate SN in ESO 575-G013 (101 Mpc)
A. Aamer (Arizona), K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026mxl [ATLAS26fuo]
RA, DEC:12:52:09.452, -21:51:40.16
(193.039383, -21.861156)
Redshift:0.023
Type:SN Ia-91bg-like
See object 2026mxl [ATLAS26fuo]
Here we report the ATLAS discovery of the transient ATLAS26fuo (AT2026mxl) in galaxy ESO 575- G013 at magnitude m_o = 19.30 +/- 0.08. At a distance of 101 Mpc, the transient was discovered on MJD = 6…
AstroNote 2026-140
Type: Object/s-Data/Analysis
Released: 2026-05-18 10:24:58
Photometric Follow-up of SN 2026fov and AT 2026fbz with BHTOM.space Global Telescope Network
J. Majumdar (U.Warsaw), P. Pessi (NCBJ), L. Wyrzykowski (U.Warsaw/NCBJ/EASST.eu), P.J. Mikolajczyk (U.Wroclaw/NCBJ), K…
Source Group: BHTOM
Keywords: Time-domain, Surveys, Nova, Supernova, Optical
Related Objects:
2026fov
RA, DEC:22:28:27.241, +30:17:54.46
(337.113503, 30.298461)
Redshift:0.003292
Type:SN II
See object 2026fov
,
2026fbz
RA, DEC:04:31:00.535, -68:29:50.28
(67.752230, -68.497300)
Redshift:0.00087
Type:Nova
See object 2026fbz
We report on the optical multiband photometric follow-up of SN 2026fov (Type II SN) and AT 2026fbz (Nova) conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-139
Type: Object/s-Discovery/Classification
Released: 2026-05-18 05:49:12
Classification of AT 2025alls as a Flaring AGN
Benny Trakhtenbrot (Tel Aviv U.), Franz Bauer (U. de Tarapaca), Paula Silva (PUC Chile, U. de Tarapaca), Jessie Runnoe …
Source Group: SDSS
Related Objects:
2025alls
RA, DEC:08:50:38.296, -00:59:21.78
(132.659566, -0.989384)
Redshift:0.2697
Type:AGN
See object 2025alls
Using SDSS-V spectroscopy, including in the new rapid follow-up Target-of-Opportunity (ToO) mode, we classify the transient AT 2025alls as an AGN undergoing significant, unusual brightening. The sour…
AstroNote 2026-138
Type: Object/s-Discovery/Classification
Released: 2026-05-17 16:00:04
ePESSTO+ spectroscopic classification of optical transients
J. Khaulsay (Cardiff), J. Quirola-Vásquez (Radboud) , C. Aster (Cardiff), M. Dennefeld (Sorbonne), N. Ihanec (ING), G. …
Source Group: ePESSTO+
Keywords: Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026jci
RA, DEC:15:09:26.182, -10:41:27.26
(227.359094, -10.690905)
Redshift:0.0245
Type:SN II
See object 2026jci
,
2026ldz [ATLAS26ezo]
RA, DEC:01:33:47.842, -69:19:44.33
(23.449343, -69.328981)
Redshift:0.056
Type:SN Ia
See object 2026ldz [ATLAS26ezo]
,
2026loo [ZTF26aauvalc]
RA, DEC:10:22:04.427, -10:30:38.27
(155.518446, -10.510631)
Redshift:0.053
Type:TDE-H-He
See object 2026loo [ZTF26aauvalc]
,
2026mho [ATLAS26flx]
RA, DEC:20:07:38.301, -21:07:06.40
(301.909587, -21.118444)
Redshift:0.008
Type:SN IIn
See object 2026mho [ATLAS26flx]
,
2026mim [ATLAS26fmv]
RA, DEC:23:07:06.188, -28:36:45.66
(346.775781, -28.612683)
Redshift:0.032
Type:SN Ia
See object 2026mim [ATLAS26fmv]
,
2026mrc [ATLAS26fqh]
RA, DEC:11:25:43.622, -16:40:10.37
(171.431758, -16.669548)
Redshift:0.076
Type:SN Ia
See object 2026mrc [ATLAS26fqh]
,
2026mrf [ZTF26aawudnu]
RA, DEC:14:51:14.727, +16:41:40.34
(222.811362, 16.694539)
Redshift:0.046
Type:SN Ia
See object 2026mrf [ZTF26aawudnu]
,
2026mss [ATLAS26frg]
RA, DEC:21:29:36.932, -72:02:20.39
(322.403884, -72.038997)
Redshift:0.065
Type:SN Ia
See object 2026mss [ATLAS26frg]
This report includes classifications of 5 Type Ia, 1 Type II, 1 Type IIn, and 1 TDE-H-He. We encourage followup observations.
AstroNote 2026-137
Type: Object/s-Discovery/Classification
Released: 2026-05-16 16:01:50
ePESSTO+ spectroscopic classification of optical transients
J. Quirola-Vásquez (Radboud), J. Khaulsay (Cardiff), C. Aster (Cardiff), M. Dennefeld (Sorbonne), N. Ihanec (ING), G. …
Source Group: ePESSTO+
Keywords: Astronomical Databases, Spectroscopy, Transient, Supernova, Optical
Related Objects:
2021jbt [ATLAS21mge]
RA, DEC:14:50:57.410, -28:56:19.21
(222.739208, -28.938669)
Redshift:0.07
Type:AGN
See object 2021jbt [ATLAS21mge]
,
2026lru [ASASSN-26df]
RA, DEC:10:23:49.563, -20:57:29.52
(155.956512, -20.958200)
Redshift:0.026
Type:SN Ia
See object 2026lru [ASASSN-26df]
,
2026mbj [ZTF26aavrsod]
RA, DEC:16:11:41.710, -24:03:58.63
(242.923791, -24.066286)
Redshift:0
Type:CV
See object 2026mbj [ZTF26aavrsod]
,
2026mhn [DCAP69]
RA, DEC:16:44:31.651, -27:15:18.38
(251.131879, -27.255106)
Redshift:0
Type:CV
See object 2026mhn [DCAP69]
,
2026mlf [ATLAS26foj]
RA, DEC:13:01:56.482, -31:45:10.71
(195.485344, -31.752974)
Redshift:0.052
Type:SN Ia-91T-like
See object 2026mlf [ATLAS26foj]
,
2026mqo [ATLAS26fpm]
RA, DEC:13:32:50.969, -27:03:10.45
(203.212370, -27.052904)
Redshift:0.038
Type:SN II
See object 2026mqo [ATLAS26fpm]
,
2026mrk [ZTF26aavlqbu]
RA, DEC:17:23:31.807, -22:46:29.24
(260.882530, -22.774788)
Redshift:0
Type:CV
See object 2026mrk [ZTF26aavlqbu]
This report includes classifications of 1 Type Ia,1 Type II, 1 Type Ia-91T-like, 1 AGN and 3 CV's. We encourage followup observations.
AstroNote 2026-136
Type: Object/s-Discovery/Classification
Released: 2026-05-15 15:00:09
ePESSTO+ spectroscopic classification of optical transients
J. Khaulsay (Cardiff), J. Quirola-Vásquez (Radboud) , C. Aster (Cardiff), M. Dennefeld (Sorbonne), N. Ihanec (ING), G. …
Source Group: ePESSTO+
Keywords: Astronomical Databases, Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026lgi [ZTF26aaurdwh]
RA, DEC:08:06:32.073, +17:26:55.74
(121.633638, 17.448817)
Redshift:0.11
Type:SN Ia
See object 2026lgi [ZTF26aaurdwh]
,
2026idh [ATLAS26dre]
RA, DEC:09:22:22.962, -61:02:44.11
(140.595674, -61.045585)
Redshift:0.007
Type:SN Ic
See object 2026idh [ATLAS26dre]
,
2026ljt [ATLAS26fdh]
RA, DEC:12:05:45.495, +31:03:32.11
(181.439561, 31.058919)
Redshift:0.023
Type:SN Ia-91bg-like
See object 2026ljt [ATLAS26fdh]
,
2026lkc [ATLAS26feb]
RA, DEC:13:25:28.024, +09:49:28.04
(201.366767, 9.824456)
Redshift:0.09
Type:SN Ia
See object 2026lkc [ATLAS26feb]
,
2026llc [GOTO26eey]
RA, DEC:20:37:10.787, -26:11:29.67
(309.294947, -26.191575)
Redshift:0.04
Type:SN Ia
See object 2026llc [GOTO26eey]
,
2026mfl [GOTO26epb]
RA, DEC:19:37:11.200, -44:20:46.81
(294.296666, -44.346336)
Redshift:0.02
Type:SN II
See object 2026mfl [GOTO26epb]
,
2026mfm [GOTO26epc]
RA, DEC:19:08:51.668, -48:32:04.79
(287.215283, -48.534663)
Redshift:0.05
Type:SN Ia
See object 2026mfm [GOTO26epc]
This report includes classifications of 4 Type Ia's, 1 Type II, 1 Type Ia-91bg-like, and confirmation of a previous classification for a Type Ic. We encourage followup observations.
AstroNote 2026-135
Type: Object/s-Data/Analysis
Released: 2026-05-15 13:20:02
Photometric follow-up of a Type-Ia Supernova SN 2026fvx with BHTOM.space Global Telescope Network
P.J. Mikolajczyk (U.Wroclaw/NCBJ, PL), L. Wyrzykowski (U.Warsaw/NCBJ, PL/EASST.eu), K. Kotysz (U.Wroclaw/U.Warsaw, PL),…
Source Group: BHTOM
Keywords: Photometry, Transient, Supernova
Related Objects:
2026fvx
RA, DEC:12:14:58.133, +63:47:16.41
(183.742223, 63.787891)
Redshift:0.004846
Type:SN Ia
See object 2026fvx
Related Notes:
2026-102
2026-1352026-04-16 10:14:19
Title: gri-band photometry of SN 2026fvx with the Stone Edge Observatory 0.5m telescope
Authors: Will Langford, Vivek Cherian, Ava Lewin, Hexi Jin, Richard …
,
2026-104
2026-1352026-04-17 15:51:45
Title: SN 2026fvx : Photometric and SED follow-up of the SN in NGC 4205 with the RAPAS ProAm network
Authors: Thierry Midavaine (I73, Club Eclipse), Christophe Boussin (…
Source Group: RAPAS
,
2026-76
2026-1352026-03-18 15:24:45
Title: SN 2026fvx: Kinder Follow-up Observations of a Rapidly Brightening Young Type Ia Supernova
Authors: Y.-H. Lee, M.-H. Lee, T.-W. Chen, Y.-C. Pan, H.-Y. Hsiao, A…
Source Group: Kinder
We report on the optical multiband photometric follow-up of SN 2026fvx conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-134
Type: Object/s-Data/Analysis
Released: 2026-05-14 15:46:59
DAO and UBC Southern Observatory photometric follow-up of selected transients 2026-III (May 2026)
D. D. Balam (DAO/NRC), A. C. Boley (University of British Columbia - UBC) and S. Chan (UBC) & A. Schildhorn (UBC)
Source Group: DAO_OTS
Keywords: Photometry
Related Objects:
2026iea
RA, DEC:09:58:16.781, +27:40:45.48
(149.569920, 27.679299)
Redshift:
Type:
See object 2026iea
,
2026kyu
RA, DEC:18:12:54.411, +11:22:56.95
(273.226713, 11.382486)
Redshift:
Type:
See object 2026kyu
,
2026lar
RA, DEC:18:10:23.176, +45:38:19.84
(272.596568, 45.638845)
Redshift:
Type:
See object 2026lar
,
2026lfd [ATLAS26fdl]
RA, DEC:11:48:30.618, +50:02:04.99
(177.127575, 50.034720)
Redshift:
Type:
See object 2026lfd [ATLAS26fdl]
,
2026lhu
RA, DEC:14:24:23.100, +25:47:19.64
(216.096250, 25.788789)
Redshift:0.073
Type:SN Ia
See object 2026lhu
,
2026ljv
RA, DEC:15:03:12.643, +44:22:24.77
(225.802678, 44.373547)
Redshift:0.04
Type:SN Ia
See object 2026ljv
,
2026kia
RA, DEC:10:53:55.518, -16:06:06.72
(163.481326, -16.101866)
Redshift:0.014577
Type:SN II
See object 2026kia
,
2026lkm
RA, DEC:14:41:39.027, -37:13:46.68
(220.412611, -37.229635)
Redshift:
Type:
See object 2026lkm
,
2026lqa
RA, DEC:12:41:42.770, -17:46:00.00
(190.428208, -17.766667)
Redshift:
Type:
See object 2026lqa
,
2026lru
RA, DEC:10:23:49.563, -20:57:29.52
(155.956512, -20.958200)
Redshift:0.026
Type:SN Ia
See object 2026lru
,
2026mcc
RA, DEC:13:33:34.230, -20:38:04.35
(203.392625, -20.634541)
Redshift:
Type:
See object 2026mcc
,
2026lnt
RA, DEC:15:55:05.718, +01:53:48.70
(238.773825, 1.896861)
Redshift:0.02
Type:SN II
See object 2026lnt
,
2026lxf
RA, DEC:15:03:05.190, +22:02:04.10
(225.771625, 22.034472)
Redshift:0
Type:CV
See object 2026lxf
,
2026mhn
RA, DEC:16:44:31.651, -27:15:18.38
(251.131879, -27.255106)
Redshift:0
Type:CV
See object 2026mhn
We present (SDSS) g&r filter (DAO) and (Kron-Cousins - V & R) photometric follow up observations of selected optical transients obtained using the 1.82-m Plaskett telescope of the (Dominion Astrophys…
AstroNote 2026-133
Type: Object/s-Discovery/Classification
Released: 2026-05-14 10:21:14
Spectroscopic Classifications of Optical Transients with Keck II/KCWI
Jenna Karcheski, Kishore C. Patra, Ryan J. Foley (UCSC)
Source Group: UCSC
Related Objects:
2026kfw [LSST-AP-DO-170257199649521669]
RA, DEC:09:56:52.772, +01:49:59.18
(149.219885, 1.833104)
Redshift:0.21
Type:SN Ia
See object 2026kfw [LSST-AP-DO-170257199649521669]
,
2026jkr [LSST-AP-DO-170230797176406143]
RA, DEC:10:04:17.291, +03:25:22.86
(151.072046, 3.423017)
Redshift:0.35
Type:SN Ic-BL
See object 2026jkr [LSST-AP-DO-170230797176406143]
,
2026ikn [LSST-AP-DO-170226393328648251]
RA, DEC:09:59:46.483, +03:46:48.87
(149.943679, 3.780242)
Redshift:0.298
Type:SN Ia
See object 2026ikn [LSST-AP-DO-170226393328648251]
We report the spectroscopic classifications of 3 transients (2 SNe Ia, 1 SN Ic-BL) discovered by LSST.
AstroNote 2026-132
Type: Object/s-Discovery/Classification
Released: 2026-05-13 07:29:05
ATLAS26flx (AT2026mho): discovery of a candidate SN in ESO 595- G 014 (35 Mpc)
K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, A. Aamer, C. …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026mho [ATLAS26flx]
RA, DEC:20:07:38.301, -21:07:06.40
(301.909587, -21.118444)
Redshift:0.008
Type:SN IIn
See object 2026mho [ATLAS26flx]
Here we report the ATLAS discovery of the transient ATLAS26flx (AT2026mho) in galaxy ESO 595- G 014 at magnitude m_o = 17.93 +/- 0.16. At a distance of 35 Mpc (redshift independent, from NED), the tr…
AstroNote 2026-131
Type: Announcement-Data Release
Released: 2026-05-11 11:29:39
SN 2026kie : Photometric and SED follow-up with the RAPAS ProAm network
Thierry Midavaine (I73, Club Eclipse), Philippe Dupouy (T500mm, Dax), Olivier Garde (C2PU, 2SPOT), Pascal Goumard (SADR…
Source Group: RAPAS
Keywords: Time-domain, Instrumentation, Photometry, Spectroscopy, Transient, Supernova, Optical
We report on the optical photometric follow-up of SN 2026kie with RAPAS, a ProAm network using telescopes equipped with a set of filters RAPAS G, RAPAS Gbp and RAPAS Grp meeting Gaia G, Gbp and Grp p…
AstroNote 2026-130
Type: Object/s-Data/Analysis
Released: 2026-05-11 11:18:39
Photometric Follow-up of Selected Variable Sources with BHTOM.space Global Telescope Network
J. Majumdar (U.Warsaw), P. Pessi (NCBJ), L. Wyrzykowski (U.Warsaw/NCBJ/EASST.eu), P.J. Mikolajczyk (U.Wroclaw/NCBJ), K…
Source Group: BHTOM
Keywords: Time-domain, Surveys, Variable Star, Cataclysmic Variable, Nova, Microlensing, Optical
Related Objects:
2026coj
RA, DEC:08:01:11.020, -03:43:14.10
(120.295917, -3.720583)
Redshift:0
Type:CV
See object 2026coj
,
2025wyg
RA, DEC:17:30:12.300, -27:53:48.80
(262.551250, -27.896889)
Redshift:
Type:Nova
See object 2025wyg
,
2019uix [Gaia19eyy]
RA, DEC:08:30:42.490, -41:33:42.52
(127.677042, -41.561811)
Redshift:
Type:
See object 2019uix [Gaia19eyy]
,
2024sfn [Gaia24cfg]
RA, DEC:17:50:13.290, -40:24:40.00
(267.555375, -40.411111)
Redshift:
Type:
See object 2024sfn [Gaia24cfg]
,
2024aboo [Gaia24dhn]
RA, DEC:06:09:19.240, -06:41:55.82
(92.330167, -6.698839)
Redshift:
Type:
See object 2024aboo [Gaia24dhn]
,
2024abwu [Gaia24dja]
RA, DEC:06:27:28.720, +03:52:23.16
(96.869667, 3.873100)
Redshift:
Type:
See object 2024abwu [Gaia24dja]
,
2025ahn
RA, DEC:15:00:36.520, -29:25:49.17
(225.152166, -29.430324)
Redshift:
Type:
See object 2025ahn
We report on the optical multiband photometric follow-up of 2026coj, 2025wyg, 2019uix, 2024sfn, 2024aboo, 2024abwu and 2025ahn conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-129
Type: Object/s-Discovery/Classification
Released: 2026-05-08 11:30:46
NOT Spectroscopic Classification of Transients
Levente Örs Benkóczy, Alma Bergström, Suhyeon Choe, Marguerite de Sainte Marie D'agneaux, Sara Kutschbach, Emma L…
Source Group: ZTF
Related Objects:
2026kyp [ZTF26aatidrh]
RA, DEC:09:07:24.047, +12:24:11.80
(136.850195, 12.403277)
Redshift:0.087
Type:SN Ia
See object 2026kyp [ZTF26aatidrh]
,
2026iic [ZTF26aaqdhwx]
RA, DEC:09:31:50.563, -00:02:37.62
(142.960677, -0.043783)
Redshift:0.111
Type:SN Ia-CSM
See object 2026iic [ZTF26aaqdhwx]
,
2026lap [ZTF26aaumtdl]
RA, DEC:16:11:49.625, -12:20:03.25
(242.956770, -12.334236)
Redshift:0.042
Type:SN Ia
See object 2026lap [ZTF26aaumtdl]
,
2026jms [ZTF26aasygmo]
RA, DEC:11:30:53.178, -04:21:09.37
(172.721575, -4.352603)
Redshift:0.0369
Type:SN IIb
See object 2026jms [ZTF26aasygmo]
,
2026jzl [ZTF26aatbuhc]
RA, DEC:16:40:16.563, -10:59:34.45
(250.069012, -10.992903)
Redshift:0.067
Type:SN Ib
See object 2026jzl [ZTF26aatbuhc]
,
2026iha [ZTF26aarorxm]
RA, DEC:17:06:08.619, +30:34:00.57
(256.535911, 30.566826)
Redshift:0.084
Type:SN IIn
See object 2026iha [ZTF26aarorxm]
,
2026akp [ZTF26aaqklxk]
RA, DEC:22:51:21.878, +32:21:10.23
(342.841157, 32.352840)
Redshift:0.0214
Type:SN II
See object 2026akp [ZTF26aaqklxk]
We report the spectroscopic classification of 7 transients obtained with the Nordic Optical Telescope as part of the Observational Astrophysics II course at Stockholm University.
AstroNote 2026-128
Type: Announcement-Data Release
Released: 2026-05-07 16:30:23
Updated Version of NED-LVS Galaxies (April 2026)
David Cook (Caltech/IPAC), Joseph Mazzarella (Caltech/IPAC), George Helou (Caltech/IPAC), Alexis Alcala (Caltech/IPAC),…
Keywords: Catalogs, Astronomical Databases, Galaxy, Gravitational Waves
We announce an update to the NASA/IPAC Extragalactic Database Local Volume sample (NED-LVS). The April 2026 version of NED-LVS has the same composition as that of the June 2025 version, but now has g…
AstroNote 2026-127
Type: Object/s-Discovery/Classification
Released: 2026-05-07 15:23:59
ePESSTO+ spectroscopic classification of optical transients
J. Khaulsay (Cardiff), C. Cárdenas (UA), A. Reguitti (INAF), C. Gutiérrez (ICE-CSIC), T. Kravtsov (UTU), A. Dutta, A. S…
Source Group: ePESSTO+
Keywords: Astronomical Databases, Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026kco [ZTF26aatdpkc]
RA, DEC:11:50:42.960, -13:23:17.72
(177.679001, -13.388255)
Redshift:0.13
Type:SN IIn
See object 2026kco [ZTF26aatdpkc]
,
2026kff [ATLAS26eod]
RA, DEC:11:24:59.161, +02:39:45.99
(171.246506, 2.662774)
Redshift:0.063
Type:SN Ia
See object 2026kff [ATLAS26eod]
,
2026ljy [ATLAS26fdy]
RA, DEC:12:35:42.787, -04:05:03.13
(188.928278, -4.084202)
Redshift:0.06
Type:SN Ia
See object 2026ljy [ATLAS26fdy]
This report includes classifications of 2 Type Ia's and i Type Ia-Ca-rich. We encourage followup observations.
AstroNote 2026-126
Type: Object/s-Discovery/Classification
Released: 2026-05-06 23:48:45
ePESSTO+ re-classification of SN2026kie as a Type Ic Supernova
C. Pfeffer (Hawaii IfA), A. Gal-Yam (Weizmann), C. Ashall (Hawaii IfA), O. Yaron (Weizmann), J. Anderson (ESO), W. Hoog…
Source Group: ePESSTO+
Keywords: Spectroscopy, Transient, Supernova
Related Objects:
2026kie [ATLAS26epm]
RA, DEC:10:52:36.529, +22:55:54.04
(163.152205, 22.931678)
Redshift:0.00424
Type:SN Ic
See object 2026kie [ATLAS26epm]
We report the re-classification of SN 2026kie (ATLAS26epm/ZTF26aatzrft/GOTO26dqt) as Type Ic, based on a spectrum acquired with the 3.58m ESO New Technology Telescope. Our high S/N spectrum lacks any…
AstroNote 2026-125
Type: Object/s-Discovery/Classification
Released: 2026-05-06 14:17:57
ePESSTO+ spectroscopic classification of optical transients
A. Sankar.K, A. Dutta, A. Aryan, Y.-H. Lee, M.-H. Lee, C.-H. Lai, T.-W. Chen (NCU), T. Kravtsov (UTU), C. Gutiérrez (IC…
Source Group: ePESSTO+
Keywords: Astronomical Databases, Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026lkn [GOTO26edu]
RA, DEC:12:49:29.093, -11:24:12.79
(192.371220, -11.403552)
Redshift:0.047
Type:SN
See object 2026lkn [GOTO26edu]
,
2026jcw [BGEM J134822.89-311042.1]
RA, DEC:13:48:22.893, -31:10:42.12
(207.095387, -31.178367)
Redshift:0.039
Type:SN IIn
See object 2026jcw [BGEM J134822.89-311042.1]
,
2026lky [GOTO26edr]
RA, DEC:12:45:09.372, -35:13:48.39
(191.289051, -35.230107)
Redshift:0.056
Type:SN Ia
See object 2026lky [GOTO26edr]
,
2026koi [ATLAS26etk]
RA, DEC:17:21:51.566, +31:06:22.16
(260.464857, 31.106155)
Redshift:0.09
Type:SN Ic-BL
See object 2026koi [ATLAS26etk]
This report includes 1 Type IIn, 1 Type Ic-BL, 1 Type Ia and a 1 blue featureless SN.
AstroNote 2026-124
Type: Object/s-Discovery/Classification
Released: 2026-05-06 13:36:27
ATLAS26fdh (AT2026ljt): discovery of a candidate SN in UGC 07085A NED01 (99 Mpc)
F. Stoppa (Oxford), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, …
Source Group: ATLAS
Related Objects:
2026ljt [ATLAS26fdh]
RA, DEC:12:05:45.495, +31:03:32.11
(181.439561, 31.058919)
Redshift:0.023
Type:SN Ia-91bg-like
See object 2026ljt [ATLAS26fdh]
Here we report the ATLAS discovery of the transient ATLAS26fdh (AT2026ljt) in galaxy UGC 07085A NED01 at magnitude m_o = 18.38 +/- 0.15. At a distance of 99 Mpc, the transient was discovered on MJD …
AstroNote 2026-123
Type: Object/s-Discovery/Classification
Released: 2026-05-05 16:32:59
ePESSTO+ spectroscopic classification of optical transients
T. Kravtsov (UTU), C. Gutiérrez (ICE-CSIC), A. Reguitti (INAF), C. Cárdenas (UA), J. Khaulsay (Cardiff), A. Aryan,  A. …
Source Group: ePESSTO+
Keywords: Astronomical Databases, Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026kiw [ATLAS26epu]
RA, DEC:23:17:20.313, -17:20:21.31
(349.334639, -17.339253)
Redshift:0.042
Type:SN Ia
See object 2026kiw [ATLAS26epu]
,
2026kuh [GOTO26dyx]
RA, DEC:08:55:17.289, -14:31:27.39
(133.822037, -14.524276)
Redshift:0.05
Type:SN Ia
See object 2026kuh [GOTO26dyx]
,
2026law [GOTO26ecb]
RA, DEC:10:12:15.454, +09:16:57.07
(153.064390, 9.282518)
Redshift:0.1
Type:SLSN-I
See object 2026law [GOTO26ecb]
,
2026lel [ZTF26aaulhso]
RA, DEC:10:00:52.913, +09:08:18.26
(150.220470, 9.138406)
Redshift:0.058
Type:SN Ia
See object 2026lel [ZTF26aaulhso]
,
2026lfm [ATLAS26fbo]
RA, DEC:09:25:34.567, -13:57:00.15
(141.394029, -13.950042)
Redshift:0.037
Type:SN Ic
See object 2026lfm [ATLAS26fbo]
,
2026kzy [GOTO26eca]
RA, DEC:09:53:19.494, +07:58:19.43
(148.331225, 7.972064)
Redshift:0.063
Type:SN Ia
See object 2026kzy [GOTO26eca]
,
2026koe [ATLAS26etg]
RA, DEC:10:05:25.723, -27:37:54.17
(151.357180, -27.631713)
Redshift:0.051
Type:SN Ia
See object 2026koe [ATLAS26etg]
,
2026lec [ATLAS26ezs]
RA, DEC:22:39:55.140, -22:09:39.46
(339.979750, -22.160962)
Redshift:0.04
Type:SN IIb
See object 2026lec [ATLAS26ezs]
,
2026kjm [ZTF26aatktdb]
RA, DEC:12:24:35.389, +07:43:40.92
(186.147455, 7.728034)
Redshift:0.073
Type:SN Ia
See object 2026kjm [ZTF26aatktdb]
,
2026lba [ZTF19aaloljd]
RA, DEC:12:45:10.715, +03:49:29.57
(191.294648, 3.824881)
Redshift:0.078
Type:SN Ia
See object 2026lba [ZTF19aaloljd]
,
2026kyf [ATLAS26exj]
RA, DEC:17:52:02.511, -65:17:07.50
(268.010461, -65.285416)
Redshift:0.07
Type:SN Ia
See object 2026kyf [ATLAS26exj]
,
2026lav [GOTO26eci]
RA, DEC:16:24:24.258, +20:31:49.17
(246.101074, 20.530325)
Redshift:0.04
Type:SN Ia
See object 2026lav [GOTO26eci]
,
2026kfd [ATLAS26eob]
RA, DEC:18:52:58.177, -81:39:18.50
(283.242404, -81.655140)
Redshift:0.056
Type:SN Ia
See object 2026kfd [ATLAS26eob]
,
2026kui [GOTO26dyz]
RA, DEC:20:42:38.124, -35:04:28.71
(310.658850, -35.074641)
Redshift:0.09
Type:SN II
See object 2026kui [GOTO26dyz]
,
2026ldw [ATLAS26ezl]
RA, DEC:21:13:03.790, -58:43:09.95
(318.265793, -58.719431)
Redshift:0.05
Type:SN Ia
See object 2026ldw [ATLAS26ezl]
,
2026kye [ATLAS26exi]
RA, DEC:20:49:58.771, -19:37:56.72
(312.494878, -19.632423)
Redshift:0.038
Type:SN II
See object 2026kye [ATLAS26exi]
,
2026kiz [ATLAS26epx]
RA, DEC:21:48:48.822, -31:12:15.43
(327.203423, -31.204287)
Redshift:0.09
Type:SN Ia
See object 2026kiz [ATLAS26epx]
,
2026kir [ATLAS26epp]
RA, DEC:22:06:01.883, -23:31:11.10
(331.507848, -23.519751)
Redshift:0.054
Type:SN Ia
See object 2026kir [ATLAS26epp]
,
2026kyg [ATLAS26exk]
RA, DEC:22:26:40.815, -49:10:16.82
(336.670062, -49.171338)
Redshift:0.06
Type:SN Ia
See object 2026kyg [ATLAS26exk]
,
2026ljl [ATLAS26fda]
RA, DEC:22:27:22.588, -19:36:17.23
(336.844119, -19.604786)
Redshift:0.04
Type:SN Ia
See object 2026ljl [ATLAS26fda]
This report includes classifications of 15 Type Ia's, 1 Type IIb, 1 Type Ic, 2 Type II and 1 SLSN. We encourage followup observations.
AstroNote 2026-122
Type: Object/s-Data/Analysis
Released: 2026-05-05 15:18:40
Multi-band Photometric Follow-up of TDE 2025aarm and TDE 2025bri with BHTOM.space Global Telescope Network
J. Majumdar (U.Warsaw), P. Pessi (NCBJ), L. Wyrzykowski (U.Warsaw/NCBJ/EASST.eu), P.J. Mikolajczyk (U.Wroclaw/NCBJ), K…
Source Group: BHTOM
Keywords: Time-domain, Surveys, TDE, Optical
Related Objects:
2025aarm
RA, DEC:04:32:12.399, -05:22:39.51
(68.051664, -5.377641)
Redshift:0.01368
Type:TDE
See object 2025aarm
,
2025bri
RA, DEC:14:10:40.438, -10:47:57.00
(212.668493, -10.799167)
Redshift:0.061
Type:TDE-He
See object 2025bri
We report on the optical multiband photometric follow-up of TDE 2025aarm and TDE 2025bri conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-121
Type: Object/s-Discovery/Classification
Released: 2026-05-04 16:33:19
ePESSTO+ spectroscopic classification of optical transients
C. Cárdenas (UA), J. Khaulsay (Cardiff), T. Kravtsov (UTU), C. Gutiérrez (ICE-CSIC), A. Reguitti (INAF), Anirban Dutta,…
Source Group: ePESSTO+
Keywords: Astronomical Databases, Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026kcg [ZTF26aatifnw]
RA, DEC:08:30:27.451, +21:09:44.10
(127.614379, 21.162249)
Redshift:0.06
Type:SN Ia
See object 2026kcg [ZTF26aatifnw]
,
2026khv [ATLAS26epj]
RA, DEC:08:53:27.477, -09:16:58.41
(133.364488, -9.282890)
Redshift:0.08
Type:SN Ia
See object 2026khv [ATLAS26epj]
,
2026kep [ZTF26aatmcni]
RA, DEC:12:59:50.277, -10:58:39.42
(194.959486, -10.977616)
Redshift:0.05
Type:SN Ia
See object 2026kep [ZTF26aatmcni]
,
2026kba [ATLAS26eld]
RA, DEC:10:37:19.555, -40:58:32.25
(159.331478, -40.975626)
Redshift:0.02
Type:SN IIb
See object 2026kba [ATLAS26eld]
,
2026lau [ZTF25aateyvv]
RA, DEC:10:59:41.050, -10:41:37.23
(164.921043, -10.693675)
Redshift:0.05
Type:SN Ia
See object 2026lau [ZTF25aateyvv]
,
2026jmu [ZTF26aatdbpf]
RA, DEC:12:38:51.641, +06:49:46.70
(189.715169, 6.829638)
Redshift:0.09
Type:SN Ia
See object 2026jmu [ZTF26aatdbpf]
,
2026kib [GOTO26dnw]
RA, DEC:12:59:53.452, -33:51:31.94
(194.972717, -33.858873)
Redshift:0.047
Type:SN Ia
See object 2026kib [GOTO26dnw]
,
2026kpn [GOTO26dqa]
RA, DEC:14:49:09.245, -00:54:16.10
(222.288521, -0.904473)
Redshift:0.028
Type:SN Ic
See object 2026kpn [GOTO26dqa]
,
2026kza [DCAP23]
RA, DEC:11:27:55.560, -13:38:57.45
(171.981500, -13.649293)
Redshift:0.01
Type:SN Ia
See object 2026kza [DCAP23]
,
2026fhx [ATLAS26cvc]
RA, DEC:14:22:18.090, -86:50:14.38
(215.575377, -86.837327)
Redshift:0.041
Type:SN
See object 2026fhx [ATLAS26cvc]
,
2026kob [ATLAS26esz]
RA, DEC:17:09:50.810, +26:09:14.16
(257.461708, 26.153933)
Redshift:0.046
Type:SN Ia
See object 2026kob [ATLAS26esz]
,
2026kut [GOTO26dyj]
RA, DEC:20:43:21.455, -11:49:21.10
(310.839398, -11.822527)
Redshift:0.054
Type:SN IIn
See object 2026kut [GOTO26dyj]
,
2026kbo [ATLAS26elt]
RA, DEC:20:06:00.988, -52:30:55.88
(301.504117, -52.515523)
Redshift:0.06
Type:SN Ia
See object 2026kbo [ATLAS26elt]
,
2026kgw [ZTF26aattvur]
RA, DEC:17:39:40.560, +14:49:02.18
(264.918998, 14.817273)
Redshift:0.093
Type:SN Ia
See object 2026kgw [ZTF26aattvur]
,
2026lda [DCAP34]
RA, DEC:22:14:40.686, +05:04:50.71
(333.669527, 5.080751)
Redshift:0.026
Type:SN Ia
See object 2026lda [DCAP34]
This report includes classifications of 11 Type Ia's, 1 Type IIb, 1 Type Ic, 1 Type IIn and 1 unclear SN. We encourage followup observations.
AstroNote 2026-120
Type: Object/s-Discovery/Classification
Released: 2026-05-04 11:11:38
ePESSTO+ spectroscopic classification of optical transients
J. Khaulsay (Cardiff), C. Cárdenas (UA), C. Gutiérrez (ICE-CSIC), T. Kravtsov (UTU), A. Reguitti (INAF), A. Sankar.K, …
Source Group: ePESSTO+
Keywords: Astronomical Databases, Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026kyo [GOTO26eax]
RA, DEC:10:06:04.967, -33:53:05.07
(151.520695, -33.884741)
Redshift:0.03
Type:SN II
See object 2026kyo [GOTO26eax]
,
2026koy [ATLAS26euf]
RA, DEC:08:07:33.956, -66:51:42.96
(121.891485, -66.861933)
Redshift:0.08
Type:SN Ia
See object 2026koy [ATLAS26euf]
,
2026hdx [ZTF26aaogioe]
RA, DEC:13:45:25.925, +29:13:38.77
(206.358021, 29.227436)
Redshift:0.154
Type:SLSN-II
See object 2026hdx [ZTF26aaogioe]
,
2026kit [ATLAS26epr]
RA, DEC:14:20:16.540, +09:56:08.55
(215.068918, 9.935707)
Redshift:0.08
Type:SN Ia
See object 2026kit [ATLAS26epr]
,
2026kne [ATLAS26ere]
RA, DEC:17:52:14.690, -78:03:43.36
(268.061207, -78.062043)
Redshift:0.06
Type:SN Ia
See object 2026kne [ATLAS26ere]
,
2026kis [ATLAS26epq]
RA, DEC:21:00:10.759, -32:17:04.84
(315.044829, -32.284678)
Redshift:0.03
Type:SN Ia
See object 2026kis [ATLAS26epq]
,
2026kfb [ATLAS26enz]
RA, DEC:21:44:51.569, -55:12:16.86
(326.214873, -55.204684)
Redshift:0.04
Type:SN Ia
See object 2026kfb [ATLAS26enz]
,
2026kyj [ATLAS26exq]
RA, DEC:23:11:33.607, -50:49:14.02
(347.890029, -50.820562)
Redshift:0.04
Type:SN Ia
See object 2026kyj [ATLAS26exq]
This report includes classifications of 6 Type Ia's, 1 Type II and 1 SLSN-II. We encourage followup observations.
AstroNote 2026-119
Type: Object/s-Discovery/Classification
Released: 2026-05-02 15:18:09
ATLAS26exf (AT2026kux): discovery of a candidate SN in UGC 12040 (87 Mpc)
K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, A. Aamer, C. …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026kux [ATLAS26exf]
RA, DEC:22:27:03.930, +36:22:06.93
(336.766373, 36.368592)
Redshift:0.021975
Type:SN Ia
See object 2026kux [ATLAS26exf]
Here we report the ATLAS discovery of the transient ATLAS26exf (AT2026kux) in galaxy UGC 12040 at magnitude m_w = 18.42 +/- 0.07. At a distance of 87 Mpc, the transient was discovered on MJD = 61154…
AstroNote 2026-118
Type: Object/s-Data/Analysis
Released: 2026-04-29 11:32:55
Photometric Follow-up of Selected Supernovae with BHTOM.space Global Telescope Network
J. Majumdar (U.Warsaw), P. Pessi (NCBJ), L. Wyrzykowski (U.Warsaw/NCBJ/EASST.eu), P.J. Mikolajczyk (U.Wroclaw/NCBJ), K…
Source Group: BHTOM
Keywords: Time-domain, Surveys, Photometry, Supernova, Optical
Related Objects:
2026afe
RA, DEC:06:39:26.449, -21:49:20.59
(99.860205, -21.822386)
Redshift:0.01
Type:SN Ia-pec
See object 2026afe
,
2025zjx
RA, DEC:01:24:33.515, +03:47:11.12
(21.139648, 3.786421)
Redshift:0.0078
Type:SN II
See object 2025zjx
,
2025mb
RA, DEC:00:34:16.878, -27:48:05.26
(8.570324, -27.801460)
Redshift:0.005
Type:SN IIb
See object 2025mb
,
2026bti
RA, DEC:14:02:46.407, +24:49:36.22
(210.693361, 24.826729)
Redshift:0.064
Type:SN IIn
See object 2026bti
,
2025aarn
RA, DEC:04:37:19.577, -08:46:35.95
(69.331570, -8.776654)
Redshift:0.01685
Type:SN II
See object 2025aarn
,
2025aox
RA, DEC:18:58:55.352, +25:57:06.38
(284.730632, 25.951773)
Redshift:0.04
Type:SN Ia-SC
See object 2025aox
We report on the optical multiband photometric follow-up of SN 2026afe, SN 2025zjx, SN 2025mb, SN 2026bti, SN 2025aarn, and SN 2025aox, conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-117
Type: Object/s-Data/Analysis
Released: 2026-04-28 12:52:55
DAO and UBC Southern Observatory photometric follow-up of selected transients 2026-II
D. D. Balam (DAO/NRC), A. C. Boley (University of British Columbia - UBC) and S. Chan (UBC)
Source Group: DAO_OTS
Keywords: Photometry
Related Objects:
2026iea
RA, DEC:09:58:16.781, +27:40:45.48
(149.569920, 27.679299)
Redshift:
Type:
See object 2026iea
,
2026ked
RA, DEC:10:46:05.916, +41:46:18.88
(161.524650, 41.771912)
Redshift:
Type:
See object 2026ked
,
2026khk
RA, DEC:16:16:44.333, +52:18:26.69
(244.184720, 52.307415)
Redshift:
Type:
See object 2026khk
,
2026kjw
RA, DEC:15:09:15.955, +68:56:49.44
(227.316480, 68.947068)
Redshift:
Type:
See object 2026kjw
,
2026kob
RA, DEC:17:09:50.810, +26:09:14.16
(257.461708, 26.153933)
Redshift:0.046
Type:SN Ia
See object 2026kob
,
2026kra
RA, DEC:13:37:50.630, +28:28:21.58
(204.460960, 28.472661)
Redshift:
Type:
See object 2026kra
,
2026ktv
RA, DEC:12:50:40.240, +33:39:42.77
(192.667667, 33.661881)
Redshift:
Type:
See object 2026ktv
,
2026kia
RA, DEC:10:53:55.518, -16:06:06.72
(163.481326, -16.101866)
Redshift:0.014577
Type:SN II
See object 2026kia
We present (SDSS) g&r filter (DAO) and (Kron-Cousins - V & R) photometric follow up observations of selected optical transients obtained using the 1.82-m Plaskett telescope of the (Dominion Astrophys…
AstroNote 2026-116
Type: Object/s-Discovery/Classification
Released: 2026-04-28 04:00:34
Spectroscopic Classification of a Low Luminosity Transient Consistent with an LBV Outburst or Supernova Precursor Event
Wynn Jacobson-Galán (Caltech), Nabeel Rehemtulla (Northwestern), Sean Brennan (MPE), Jesper Sollerman (Stockholm), Char…
Source Group: ZTF
Related Objects:
2026kqq [ZTF26aaufnkd]
RA, DEC:12:34:18.898, +06:28:26.99
(188.578743, 6.474165)
Redshift:0.0067
Type:Impostor-SN
See object 2026kqq [ZTF26aaufnkd]
,
2017des [PS17cke]
RA, DEC:12:34:18.892, +06:28:26.94
(188.578717, 6.474151)
Redshift:0.007
Type:
See object 2017des [PS17cke]
We report spectroscopic observations of the low luminosity transient AT 2026kqq in NGC 4532, consistent with an LBV eruption or supernova precursor event.
AstroNote 2026-115
Type: Object/s-Discovery/Classification
Released: 2026-04-27 17:55:46
Spectroscopic classification of a red transient identified using PanSTARRS and LSST surveys
Viraj Karambelkar, Kohki Uno, Kishalay De, Ana Lam (Columbia University)
Keywords: Transient, Supernova
Related Objects:
2026brq [PS26my]
RA, DEC:10:04:41.352, +02:46:21.16
(151.172299, 2.772544)
Redshift:
Type:
See object 2026brq [PS26my]
We report Keck/LRIS optical spectroscopic follow-up observations of a red transient identified jointly by the PanSTARRS and LSST surveys as a low luminosity Type IIp supernova.
AstroNote 2026-114
Type: Object/s-Discovery/Classification
Released: 2026-04-24 21:06:36
MMT, NOT, and LT follow-up of the young, nearby SNe 2026kid (D=16.5 Mpc) and 2026kie (D=20.3 Mpc)
Nabeel Rehemtulla (Northwestern, CIERA), Wynn Jacobson-Galán (Caltech), Chang Liu (Northwestern, CIERA), Jacob Wise (LJ…
Source Group: ZTF
Related Objects:
2026kid [ZTF26aatswhm]
RA, DEC:15:15:57.226, +56:18:32.09
(228.988443, 56.308914)
Redshift:0.0017
Type:SN II
See object 2026kid [ZTF26aatswhm]
,
2026kie [ZTF26aatzrft]
RA, DEC:10:52:36.529, +22:55:54.04
(163.152205, 22.931678)
Redshift:0.00424
Type:SN Ic
See object 2026kie [ZTF26aatzrft]
We report on MMT, NOT, and LT follow-up of the young, nearby SNe 2026kid (D=16.5 Mpc) and 2026kie (D=20.3 Mpc). We classify SN 2026kid as a reddened Type II supernova exhibiting features characterist…
AstroNote 2026-113
Type: Object/s-Discovery/Classification
Released: 2026-04-24 19:48:06
Multi-wavelength Observations of the Type Ibn supernova 2026jjc
Michael Camilo (Cornell), Cassie Sevilla (Cornell), Rahul Jayaraman (Cornell), Anna Y. Q. Ho (Cornell); Zoë McGrath (LJ…
Source Group: ZTF
Related Objects:
2026jjc
RA, DEC:16:46:02.450, +30:55:42.15
(251.510208, 30.928375)
Redshift:
Type:
See object 2026jjc
AstroNote 2026-112
Type: Object/s-Discovery/Classification
Released: 2026-04-24 14:21:39
SLSN candidates from NEEDLE on Lasair
D. Magill, X. Sheng, M. Nicholl, K. W. Smith, C. R. Angus, M. Fulton, T. Moore, J. Weston, D. R. Young, A. J. Smith (QU…
Source Group: OxQUB
Keywords: Time-domain, Transient, Supernova, TDE
Related Objects:
2026iyc [ZTF26aarynto]
RA, DEC:11:13:43.729, +21:50:31.84
(168.432205, 21.842177)
Redshift:
Type:
See object 2026iyc [ZTF26aarynto]
,
2026jem [ZTF26aarkpgw]
RA, DEC:10:14:46.227, +16:03:20.03
(153.692613, 16.055565)
Redshift:
Type:
See object 2026jem [ZTF26aarkpgw]
,
2026ilw [ZTF26aarccgh]
RA, DEC:09:17:39.892, -04:12:06.32
(139.416218, -4.201756)
Redshift:
Type:
See object 2026ilw [ZTF26aarccgh]
We report 3 SLSN candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these events.
AstroNote 2026-111
Type: Object/s-Discovery/Classification
Released: 2026-04-23 19:29:36
ZTF classification of ZTF26aaqodeo / AT2026irt as a tidal disruption event and reclassification of ZTF25acgtfmh / AT2025ahbd as an AGN
Erica Hammerstein (UC Berkeley), Ryan Chornock (UC Berkeley), Jonathan Carney (UNC), Itai Sfaradi (UC Berkeley), Robert…
Source Group: ZTF
Keywords: Transient, TDE, AGN
Related Objects:
2026irt [ZTF26aaqodeo]
RA, DEC:16:00:42.596, +53:29:27.88
(240.177482, 53.491078)
Redshift:0.1087
Type:TDE-He
See object 2026irt [ZTF26aaqodeo]
,
2025ahbd [ZTF25acgtfmh]
RA, DEC:12:54:17.622, -08:36:07.47
(193.573424, -8.602075)
Redshift:0.336
Type:AGN
See object 2025ahbd [ZTF25acgtfmh]
We report the classification of the optical transient ZTF26aaqodeo / AT2026irt as a tidal disruption event (TDE). The source was selected by the tdescore ML classifier (Stein+2024, doi: 10.3847/2041-…
AstroNote 2026-110
Type: Object/s-Discovery/Classification
Released: 2026-04-22 20:53:02
ATLAS26epm (AT2026kie): discovery of a candidate SN in NGC 3437 (24 Mpc)
K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, A. Aamer, C. …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026kie [ATLAS26epm]
RA, DEC:10:52:36.529, +22:55:54.04
(163.152205, 22.931678)
Redshift:0.00424
Type:SN Ic
See object 2026kie [ATLAS26epm]
Here we report the ATLAS discovery of the transient ATLAS26epm (AT2026kie) in galaxy NGC 3437 at magnitude m_o = 18.09 +/- 0.10. At a distance of 24 Mpc, the transient was discovered on MJD = 61152.3…
AstroNote 2026-109
Type: Object/s-Discovery/Classification
Released: 2026-04-21 19:10:15
Multi-wavelength Observations of the Type Ic-BL SN AT2026iqx
Cassie Sevilla (Cornell), Rahul Jayaraman (Cornell), Gokul Srinivasaragavan (UMD), Robert Stein (JSI), Anna Y. Q. Ho (C…
Source Group: ZTF
Related Objects:
2026iqx [ZTF26aarjkso]
RA, DEC:08:24:14.063, +00:41:35.65
(126.058595, 0.693236)
Redshift:
Type:
See object 2026iqx [ZTF26aarjkso]
AstroNote 2026-108
Type: Object/s-Discovery/Classification
Released: 2026-04-21 16:08:16
AT2026kfw (LSST-AP-DO-170257199649521669): Discovery of a candidate SLSN with a blue bump in Rubin LSST Alert stream
H. F. Stevance (Oxford), S. J. Smartt, K. W. Smith(Oxford/QUB), C. Angus, M. Nicholl (QUB), R. D. Williams, G. P. Franc…
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026kfw [LSST-AP-DO-170257199649521669]
RA, DEC:09:56:52.772, +01:49:59.18
(149.219885, 1.833104)
Redshift:0.21
Type:SN Ia
See object 2026kfw [LSST-AP-DO-170257199649521669]
Here we report the discovery of the hostless transient AT2026kfw (LSST-AP-DO-170257199649521669) with brightness m_i = 22.15 +/- 0.10 on MJD = 61151.03. Rubin forced photometry shows a prominent blue…
AstroNote 2026-107
Type: Announcement-Tool/Utility
Released: 2026-04-21 16:03:00
The Lasair Virtual Research Assistant (LVRA) annotator for Rubin alerts - r0b.a1
H. F. Stevance, S. J. Smartt (Oxford/QUB)
We present the first prototype of the Lasair Virtual Research Assistant (r0b.a1), a publicly available annotator on the Lasair Rubin Data broker which has been annotating the alert stream since the f…
AstroNote 2026-106
Type: Object/s-Data/Analysis
Released: 2026-04-21 09:18:42
Multi-band Photometric Follow-up of SN 2026ayt with BHTOM.space Global Telescope Network
J.Majumdar (U.Warsaw, PL), P. Pessi (NCBJ, PL), L. Wyrzykowski (U.Warsaw/NCBJ, PL/EASST.eu), P.J. Mikolajczyk (U.Wrocla…
Source Group: BHTOM
Keywords: Time-domain, Surveys, Supernova, Optical
Related Objects:
2026ayt
RA, DEC:09:27:23.390, -32:00:30.88
(141.847459, -32.008577)
Redshift:0.0036
Type:SN II
See object 2026ayt
We report on the optical multiband photometric follow-up of SN 2026ayt conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-105
Type: Object/s-Data/Analysis
Released: 2026-04-21 09:13:09
Multi-band Photometric Follow-up of SN 2026dix with BHTOM.space Global Telescope Network, along with the 50-mm Seestar S50 camera
J.Majumdar (U.Warsaw, PL), P. Pessi (NCBJ, PL), L. Wyrzykowski (U.Warsaw/NCBJ, PL/EASST.eu), P.J. Mikolajczyk (U.Wrocla…
Source Group: BHTOM
Keywords: Time-domain, Surveys, Supernova, Optical
Related Objects:
2026dix
RA, DEC:11:50:37.428, +55:21:12.92
(177.655950, 55.353589)
Redshift:0.0032
Type:SN IIb
See object 2026dix
We report on the optical multiband photometric follow-up of SN2026dix conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-104
Type: Announcement-Data Release
Released: 2026-04-20 10:02:25
SN 2026fvx : Photometric and SED follow-up of the SN in NGC 4205 with the RAPAS ProAm network
Thierry Midavaine (I73, Club Eclipse), Christophe Boussin (AT60 OMP), Gilles Bouttard (AT60 OMP), Christian Buil (STARO…
Source Group: RAPAS
Keywords: Time-domain, Instrumentation, Photometry, Spectroscopy, Transient, Supernova, Optical
We report on the optical photometric follow-up of SN 2026fvx with RAPAS, a ProAm network using telescopes equipped with a set of filters RAPAS G, RAPAS Gbp and RAPAS Grp meeting Gaia G, Gbp and Grp p…
AstroNote 2026-103
Type: Object/s-Discovery/Classification
Released: 2026-04-19 11:34:26
ATLAS26emb (AT2026kbs): discovery of a candidate SN in ESO 064- G 007 (84 Mpc)
K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, A. Aamer, C. …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026kbs [ATLAS26emb]
RA, DEC:12:32:26.608, -68:20:09.87
(188.110869, -68.336076)
Redshift:0.019
Type:SN Ib/c
See object 2026kbs [ATLAS26emb]
Here we report the ATLAS discovery of the transient ATLAS26emb (AT2026kbs) in galaxy ESO 064- G 007 at magnitude m_o = 18.76 +/- 0.18. At a distance of 84 Mpc, the transient was discovered on MJD = …
AstroNote 2026-102
Type: Object/s-Data/Analysis
Released: 2026-04-16 10:21:06
gri-band photometry of SN 2026fvx with the Stone Edge Observatory 0.5m telescope
Will Langford, Vivek Cherian, Ava Lewin, Hexi Jin, Richard Kron (University of Chicago)
Keywords: Photometry, Supernova
Related Objects:
2026fvx
RA, DEC:12:14:58.133, +63:47:16.41
(183.742223, 63.787891)
Redshift:0.004846
Type:SN Ia
See object 2026fvx
We report gri-band photometry of SN 2026fvx obtained with the Stone Edge Observatory 0.5m telescope on 2026 April 6 and April 8 (UT).
AstroNote 2026-101
Type: Object/s-Data/Analysis
Released: 2026-04-14 08:37:49
X-ray Brightening of the Tidal Disruption Event AT 2025aarm
Gaurava K. Jaisawal, Hannah Wichern (DTU Space), Panos Charalampopoulos (ICE-CSIC)
Keywords: Transient, TDE, X-rays
Related Objects:
2025aarm
RA, DEC:04:32:12.399, -05:22:39.51
(68.051664, -5.377641)
Redshift:0.01368
Type:TDE
See object 2025aarm
Related Notes:
2025-311
2026-1012025-10-30 18:30:50
Title: Classification of AT 2025aarm as a Rising Nearby H+He TDE
Authors: Sara Faris (Tel Aviv University), Hugo Tranin (Universitat …
Source Group: StarDestroyers
,
2025-316
2026-1012025-11-07 23:42:09
Title: X-ray detection of the TDE 2025aarm using Chandra
Authors: J. Somalwar (UC Berkeley/KIPAC@Stanford), R. Chornock (UC B…
We report the follow-up X-ray observation of TDE AT 2025aarm.
AstroNote 2026-100
Type: Announcement-Tool/Utility
Released: 2026-04-13 08:42:49
SNID-SAGE: public release of a new tool for interactive supernova classification and spectral analysis
Fiorenzo Stoppa, Stephen J. Smartt
We announce the public release of SNID-SAGE, a framework for supernova spectral classification and analysis that builds on the original SNID methodology. It retains the cross-correlation approach whi…
AstroNote 2026-99
Type: Object/s-Data/Analysis
Released: 2026-04-12 15:19:52
DAO and UBC Southern Observatory photometric follow-up of selected transients
D. D. Balam (DAO/NRC), A. C. Boley (University of British Columbia - UBC), A. Schildborn (UBC) and S. Chan (UBC)
Source Group: DAO_OTS
Keywords: Photometry
Related Objects:
2026icu
RA, DEC:07:36:32.513, +50:19:24.81
(114.135472, 50.323557)
Redshift:
Type:
See object 2026icu
,
2026icw
RA, DEC:11:28:54.874, +21:06:30.69
(172.228641, 21.108525)
Redshift:0.07907
Type:SN Ia
See object 2026icw
,
2026iea
RA, DEC:09:58:16.781, +27:40:45.48
(149.569920, 27.679299)
Redshift:
Type:
See object 2026iea
,
2026iei
RA, DEC:11:27:42.580, +54:15:47.06
(171.927417, 54.263072)
Redshift:0.049
Type:SN Ia
See object 2026iei
,
2026ies
RA, DEC:16:23:37.419, +39:12:11.85
(245.905912, 39.203290)
Redshift:0.02
Type:SN II
See object 2026ies
,
2026ign
RA, DEC:16:01:19.680, +44:58:06.20
(240.332000, 44.968389)
Redshift:
Type:
See object 2026ign
,
2026ihi
RA, DEC:11:45:04.582, +19:58:15.60
(176.269092, 19.971001)
Redshift:0.017
Type:SN II
See object 2026ihi
,
2026iho
RA, DEC:14:49:19.404, +33:17:41.02
(222.330850, 33.294727)
Redshift:0.088
Type:SN Ia
See object 2026iho
,
2026iih
RA, DEC:07:13:47.698, +58:48:26.60
(108.448741, 58.807388)
Redshift:
Type:
See object 2026iih
,
2026ijm
RA, DEC:12:35:13.975, +41:45:24.96
(188.808229, 41.756933)
Redshift:
Type:
See object 2026ijm
,
2026imm
RA, DEC:10:30:43.190, +40:16:01.97
(157.679958, 40.267214)
Redshift:
Type:
See object 2026imm
,
2026isc
RA, DEC:16:35:34.990, +26:38:38.36
(248.895792, 26.643989)
Redshift:0.057498
Type:SN Ia
See object 2026isc
,
2026iuk
RA, DEC:10:01:10.740, +29:37:27.72
(150.294750, 29.624367)
Redshift:
Type:
See object 2026iuk
,
2026iuq
RA, DEC:14:24:08.131, +22:56:14.71
(216.033879, 22.937420)
Redshift:
Type:
See object 2026iuq
,
2026fog
RA, DEC:10:15:46.390, -05:25:25.30
(153.943291, -5.423693)
Redshift:
Type:
See object 2026fog
,
2026frd
RA, DEC:08:02:41.345, +09:17:30.12
(120.672272, 9.291700)
Redshift:
Type:
See object 2026frd
,
2026idf
RA, DEC:15:33:21.782, -41:04:00.27
(233.340758, -41.066742)
Redshift:
Type:CV
See object 2026idf
,
2026iur
RA, DEC:09:54:32.050, -01:17:25.84
(148.633540, -1.290510)
Redshift:0.02057
Type:SN Ia
See object 2026iur
We present (SDSS) g&r filter (DAO) and (Kron-Cousins - UC) photometric follow up observations of selected optical transients obtained using the 1.82-m Plaskett telescope of the (Dominion Astrophysica…
AstroNote 2026-98
Type: Object/s-Discovery/Classification
Released: 2026-04-05 15:25:30
ATLAS26dru (AT2026ihi): discovery of a candidate SN in NGC 3861 (88 Mpc)
K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, A. Aamer, C. …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026ihi [ATLAS26dru]
RA, DEC:11:45:04.582, +19:58:15.60
(176.269092, 19.971001)
Redshift:0.017
Type:SN II
See object 2026ihi [ATLAS26dru]
Here we report the ATLAS discovery of the transient ATLAS26dru (AT2026ihi) in galaxy NGC 3861 at magnitude m_o = 18.18 +/- 0.11. At a distance of 88 Mpc (redshift independent, from NED), the transie…
AstroNote 2026-97
Type: Object/s-Discovery/Classification
Released: 2026-04-03 21:37:32
ATLAS26drr (AT2026idu): discovery of a candidate SN in IC 5328B (40 Mpc)
K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, A. Aamer, C. …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026idu [ATLAS26drr]
RA, DEC:23:33:58.172, -45:12:13.38
(353.492382, -45.203717)
Redshift:0.01022
Type:SN II
See object 2026idu [ATLAS26drr]
Here we report the ATLAS discovery of the transient ATLAS26drr (AT2026idu) in galaxy IC 5328B at magnitude m_o = 16.85 +/- 0.10. At a distance of 40 Mpc, the transient was discovered on MJD = 61133…
AstroNote 2026-96
Type: Object/s-Discovery/Classification
Released: 2026-04-03 18:03:11
Spectroscopic classification of SN 2025xtq as an unusual Type Ia-CSM SN with a > 200-day long-lived plateau
Kaustav K. Das (Caltech), K-Ryan Hinds (Caltech), Daniel A. Perley (LJMU), Jesper Sollerman, Avinash Singh (Stockholm U…
Source Group: ZTF
Keywords: Transient, Supernova
Related Objects:
2025xtq [ZTF25abrpnbo]
RA, DEC:19:55:42.495, +52:48:24.17
(298.927062, 52.806714)
Redshift:0.054
Type:SN Ia-CSM
See object 2025xtq [ZTF25abrpnbo]
We report the spectroscopic classification and unusual evolution of SN 2025xtq/ZTF25abrpnbo as an Ia-CSM supernova. The transient has remained near 18.5 mag for over 200 days. Early spectrum is consi…
AstroNote 2026-95
Type: Object/s-Discovery/Classification
Released: 2026-04-03 10:39:47
ATLAS26dre (AT2026idh): discovery of a candidate SN in ESO 126- G 010 (28 Mpc)
K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, A. Aamer, C. …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026idh [ATLAS26dre]
RA, DEC:09:22:22.962, -61:02:44.11
(140.595674, -61.045585)
Redshift:0.007
Type:SN Ic
See object 2026idh [ATLAS26dre]
Here we report the ATLAS discovery of the transient ATLAS26dre (AT2026idh) in galaxy ESO 126- G 010 at magnitude m_o = 18.10 +/- 0.15. At a distance of 28 Mpc (redshift independent, from NED), the t…

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Early multiband light curve of SN 2023ixf
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SN 2023tyk: discovery to spectroscopic classification performed fully automatically
Nabeel Rehemtulla (NU), Adam Miller (NU), Christoffer Fremling (Caltech), D. A. Perley (LJMU), Yu-J…
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Onset of SN 2023ixf observed over East Asian longitudes
Yiming Mao, Mi Zhang, Guangyao Cai, Jinan Chen, Jin Chen, Xing Gao, Keying Li, Xiaodong Lyu, Yujing…
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ePESSTO+ re-classification of AT2019xis as a light echo of SN 1987A in the LMC.
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Fast Radio Bursts (FRBs) now reported to and distributed via the TNS
O. Yaron, E. Ofek, A. Gal-Yam, A. Sass (Weizmann)

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