Showing results 1 to 50 out of 2,328
AstroNote 2026-205
Type: Object/s-Discovery/Classification
Released: 2026-06-26 21:09:55
Transient Classification with Gemini
P. Pessi (NCBJ), A. Cikota (NOIRLab/Gemini South), K. Silva (NOIRLab/Gemini South), P. King (NOIRLab/Gemini South), P. …
Source Group: GeminiClass
Keywords: Spectroscopy, Transient, Supernova
Related Objects:
2026puh
RA, DEC:19:38:38.962, -39:39:49.30
(294.662342, -39.663695)
Redshift:0.032
Type:SN II
See object 2026puh
,
2026qbu
RA, DEC:14:03:04.636, +08:56:53.05
(210.769318, 8.948070)
Redshift:0.02
Type:SN Ia
See object 2026qbu
We report spectroscopic observations of 1 SN Ia and 1 SN II.
AstroNote 2026-204
Type: Object/s-Discovery/Classification
Released: 2026-06-26 17:02:07
ATLAS26hsn (AT2026qbk): discovery of a candidate SN in ESO 153- G 007 (85 Mpc)
K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, T. Moore, J. Weston, X. Sheng, A. Aamer, C. R. Angus, D. Magill, A. …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026qbk [ATLAS26hsn]
RA, DEC:01:59:33.527, -56:21:23.15
(29.889695, -56.356431)
Redshift:
Type:
See object 2026qbk [ATLAS26hsn]
Here we report the ATLAS discovery of the transient ATLAS26hsn (AT2026qbk) in galaxy ESO 153- G 007 at magnitude m_o = 17.64 +/- 0.10. At a distance of 85 Mpc, the transient was discovered on MJD = 6…
AstroNote 2026-203
Type: Object/s-Data/Analysis
Released: 2026-06-23 16:04:02
NuSTAR X-ray upper limit of 2026obc
Yize Dong (Harvard/CfA), Daichi Tsuna (Harvard/CfA), Ashley Villar (Harvard/CfA)
Source Group: VHU-TDA
Related Objects:
2026obc
RA, DEC:01:07:49.433, +41:59:43.39
(16.955971, 41.995386)
Redshift:0.0195
Type:SN Icn
See object 2026obc
We report the NuSTAR X-ray nondetection of SN 2026obc.
AstroNote 2026-202
Type: Object/s-Discovery/Classification
Released: 2026-06-20 21:22:45
Transient Classification with Gemini
A. Cikota (NOIRLab/Gemini South), P. Pessi (NCBJ), P. King (NOIRLab/Gemini South), P. Candia (NOIRLab/Gemini South), D…
Source Group: GeminiClass
Keywords: Photometry, Transient, Supernova
Related Objects:
2026pkz
RA, DEC:12:41:15.906, -31:20:18.36
(190.316276, -31.338432)
Redshift:0.053
Type:SN Ia
See object 2026pkz
,
2026pmv
RA, DEC:21:02:03.850, -43:20:07.08
(315.516042, -43.335300)
Redshift:0.087
Type:SN Ia
See object 2026pmv
,
2026pkg
RA, DEC:13:43:31.340, -28:57:13.27
(205.880583, -28.953687)
Redshift:0.118
Type:SN Ia
See object 2026pkg
,
2026pmo
RA, DEC:10:37:40.071, +15:27:19.56
(159.416964, 15.455433)
Redshift:0.05
Type:SN Ia
See object 2026pmo
,
2026pnc
RA, DEC:21:31:25.556, -49:18:55.31
(322.856485, -49.315365)
Redshift:0.108
Type:SN Ia
See object 2026pnc
,
2026pil
RA, DEC:22:31:23.075, -19:34:46.67
(337.846146, -19.579632)
Redshift:0.111
Type:SN Ia
See object 2026pil
We report spectroscopic observations of 6 SNe Ia.
AstroNote 2026-201
Type: Object/s-Discovery/Classification
Released: 2026-06-20 18:02:35
Late-Time Re-brightening of AT 2025amdo Identified by ORACLE-2 Omni
V. G. Shah, C. Liu, N. Rehemtulla, A. A. Miller (Northwestern, CIERA), J. Sollerman, and A. Singh (Stockholm University…
Source Group: ZTF
Keywords: Photometry, Spectroscopy, Supernova
Related Objects:
2025amdo
RA, DEC:10:37:14.965, +30:37:29.09
(159.312353, 30.624747)
Redshift:0.08
Type:SN I
See object 2025amdo
,
2023aew
RA, DEC:17:40:51.370, +66:12:22.75
(265.214042, 66.206319)
Redshift:0.025
Type:SN IIb
See object 2023aew
We report a late-time re-brightening of AT 2025amdo (~185 days after the initial peak) identified by ORACLE-2 Omni, a multimodal hierarchical classifier developed for real-time monitoring of the Zwic…
AstroNote 2026-200
Type: Object/s-Data/Analysis
Released: 2026-06-20 17:38:49
DAO Photometric follow up of selected transients
M R. Kendurkar (GSNST)
Source Group: GSNST
Keywords: Surveys, Photometry, Transient, Nova, Optical
Related Objects:
2026paj [GOTO26fvy]
RA, DEC:17:48:25.754, +32:00:08.94
(267.107307, 32.002483)
Redshift:
Type:
See object 2026paj [GOTO26fvy]
,
2026ozw [ZTF26abackhg]
RA, DEC:18:26:16.254, +32:18:13.23
(276.567724, 32.303675)
Redshift:
Type:
See object 2026ozw [ZTF26abackhg]
,
2026ous [ZTF26abamsvx]
RA, DEC:19:46:21.852, +40:57:54.19
(296.591049, 40.965052)
Redshift:
Type:
See object 2026ous [ZTF26abamsvx]
,
2026ong [GOTO26fqf]
RA, DEC:20:57:52.469, +34:16:38.65
(314.468620, 34.277403)
Redshift:0.111
Type:SN Ia
See object 2026ong [GOTO26fqf]
,
2026ogd [ZTF26aazmplv]
RA, DEC:18:15:31.965, +33:07:15.15
(273.883188, 33.120875)
Redshift:0.073
Type:SN Ia
See object 2026ogd [ZTF26aazmplv]
,
2026osc [ZTF26aazmngk]
RA, DEC:21:42:45.017, +13:53:40.78
(325.687571, 13.894660)
Redshift:0.049164
Type:SN IIn
See object 2026osc [ZTF26aazmngk]
We present (SDSS) g&r filter photometric follow up observations of selected optical transients obtained using the 1.82-m Plaskett telescope of the (Dominion Astrophysical Observatory) National Resear…
AstroNote 2026-199
Type: Object/s-Discovery/Classification
Released: 2026-06-17 20:51:31
ATLAS26hix (AT2026pky): discovery of a candidate SN in NGC 7490 (90 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:
2026pky [ATLAS26hix]
RA, DEC:23:07:25.481, +32:22:47.10
(346.856170, 32.379750)
Redshift:0.022
Type:SN IIP
See object 2026pky [ATLAS26hix]
Here we report the ATLAS discovery of the transient ATLAS26hix (AT2026pky) in galaxy NGC 7490 at magnitude m_o = 18.74 +/- 0.12. At a distance of 90 Mpc, the transient was discovered on MJD = 61207.5…
AstroNote 2026-198
Type: Object/s-Data/Analysis
Released: 2026-06-17 04:17:37
DAO Photometric follow up of selected transients
M R. Kendurkar (GSNST)
Source Group: GSNST
Keywords: Surveys, Photometry, Transient, Nova, Optical
Related Objects:
2026osq [ASASSN-26dr]
RA, DEC:21:11:25.332, +14:14:29.57
(317.855550, 14.241547)
Redshift:0.03
Type:SN Ia
See object 2026osq [ASASSN-26dr]
,
2026our
RA, DEC:18:56:02.241, +35:57:00.70
(284.009338, 35.950195)
Redshift:
Type:
See object 2026our
,
2026owd [GOTO26fsy]
RA, DEC:20:27:57.651, +12:10:22.06
(306.990213, 12.172796)
Redshift:0.105
Type:SN Ia
See object 2026owd [GOTO26fsy]
,
2026owx [PS26bwh]
RA, DEC:17:58:02.261, +28:14:49.53
(269.509421, 28.247091)
Redshift:0.05
Type:SN II
See object 2026owx [PS26bwh]
,
2026oxt [ATLAS26hcx]
RA, DEC:16:00:10.377, +22:09:10.94
(240.043238, 22.153040)
Redshift:
Type:
See object 2026oxt [ATLAS26hcx]
We present (SDSS) g&r filter photometric follow up observations of selected optical transients obtained using the 1.82-m Plaskett telescope of the (Dominion Astrophysical Observatory) National Resear…
AstroNote 2026-197
Type: Object/s-Discovery/Classification
Released: 2026-06-16 17:02:12
ATLAS26hif (AT2026pjn): discovery of a candidate supernova or transient in CGCG012-055 (96 Mpc)
A. J. Smith, M. Nicholl (QUB), K. W. Smith (Oxford/QUB), D. R. Young, M. Fulton, M. McCollum, T. Moore, J. Weston, X. S…
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026pjn [ATLAS26hif]
RA, DEC:11:40:21.741, -02:42:13.17
(175.090587, -2.703659)
Redshift:
Type:
See object 2026pjn [ATLAS26hif]
Here we report the ATLAS discovery of the transient ATLAS26hif (AT2026pjn), close to the nucleus of the galaxy CGCG012-055 at magnitude m_r = 17.1. At a distance of 96 Mpc, the transient was disco…
AstroNote 2026-196
Type: Object/s-Data/Analysis
Released: 2026-06-16 15:46:17
Chandra X-ray Observatory Non-detection of Type Icn SN 2026obc
Wynn Jacobson-Galán (Caltech), Rahul Jayaraman (Cornell), Gaurav Waratkar (Caltech), Anjasha Gangopadhyay (OKC, Stockho…
Source Group: ZTF
Related Objects:
2026obc [ZTF26aayznam]
RA, DEC:01:07:49.433, +41:59:43.39
(16.955971, 41.995386)
Redshift:0.0195
Type:SN Icn
See object 2026obc [ZTF26aayznam]
We report a non-detection of SN2026obc in X-ray data from the Chandra X-ray Observatory.
AstroNote 2026-195
Type: Object/s-Discovery/Classification
Released: 2026-06-14 15:31:45
Transient Classification with Gemini
P. Pessi (NCBJ), A. Cikota (NOIRLab/Gemini South), P. Candia (NOIRLab/Gemini South), D. May (NOIRLab/Gemini South), V. …
Source Group: GeminiClass
Keywords: Spectroscopy, Transient, Supernova
Related Objects:
2026oli
RA, DEC:10:09:56.227, -84:30:40.09
(152.484280, -84.511137)
Redshift:0.04
Type:SN IIn
See object 2026oli
,
2026ons
RA, DEC:14:03:27.263, -11:50:10.89
(210.863596, -11.836359)
Redshift:0.032
Type:SN Ic
See object 2026ons
,
2026owj
RA, DEC:15:00:03.841, +04:42:27.45
(225.016004, 4.707626)
Redshift:0.063
Type:SN Ib
See object 2026owj
,
2026oxf
RA, DEC:20:53:38.599, -35:13:40.58
(313.410827, -35.227939)
Redshift:0.04
Type:SN Ia-91bg-like
See object 2026oxf
,
2026ozu
RA, DEC:22:01:03.259, -24:31:53.40
(330.263580, -24.531500)
Redshift:0.1
Type:SN Ia
See object 2026ozu
,
2026okv
RA, DEC:22:50:42.957, -65:29:16.84
(342.678988, -65.488011)
Redshift:
Type:
See object 2026okv
,
2026oyu
RA, DEC:13:39:35.505, -00:25:54.98
(204.897937, -0.431940)
Redshift:0.16
Type:SN Ia
See object 2026oyu
,
2026ozt
RA, DEC:22:24:12.796, -26:10:10.90
(336.053317, -26.169696)
Redshift:0.058
Type:SN Ia
See object 2026ozt
,
2026pao
RA, DEC:20:46:15.499, -32:19:29.95
(311.564580, -32.324986)
Redshift:0.054
Type:SN Ia
See object 2026pao
,
2026pbm
RA, DEC:13:40:39.605, +20:17:49.48
(205.165021, 20.297079)
Redshift:0.114
Type:SN Ia
See object 2026pbm
We report spectroscopic observations of 10 SNe: 6 SNe Ia, 1 SN Ic, 1 SN Ib, 1 SN IIn and 1 Other.
AstroNote 2026-194
Type: Object/s-Discovery/Classification
Released: 2026-06-13 18:13:46
ePESSTO+ spectroscopic classification of optical transients
C.G. Touchard-Paxton (Trinity), E. Charleton (Southampton), M. Ghendrih (Lancaster), C. Dashwood-Brown, N. Shiamtanis,…
Source Group: ePESSTO+
Keywords: Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026myc [ATLAS26fvj]
RA, DEC:20:38:48.864, -58:53:21.28
(309.703598, -58.889245)
Redshift:0.106
Type:SN Ia
See object 2026myc [ATLAS26fvj]
,
2026nwe [ATLAS26goe]
RA, DEC:02:49:35.557, -30:59:49.59
(42.398154, -30.997108)
Redshift:0.026
Type:SN Ia
See object 2026nwe [ATLAS26goe]
,
2026nvf [ATLAS26gnm]
RA, DEC:10:51:05.359, -42:28:56.35
(162.772330, -42.482320)
Redshift:0.012
Type:SN Ia-91T-like
See object 2026nvf [ATLAS26gnm]
,
2026omv [ZTF26abahbox]
RA, DEC:20:48:06.875, -08:30:06.18
(312.028647, -8.501717)
Redshift:0.020127
Type:SN Ia
See object 2026omv [ZTF26abahbox]
,
2026opp [GOTO26fog]
RA, DEC:01:05:49.266, -38:56:17.00
(16.455275, -38.938055)
Redshift:
Type:
See object 2026opp [GOTO26fog]
,
2026orf [ATLAS26gyw]
RA, DEC:01:17:41.604, -35:51:10.82
(19.423348, -35.853006)
Redshift:0.096
Type:SN Ia
See object 2026orf [ATLAS26gyw]
This report includes classifications of 5 Type Ia's of various sub-types and 1 transient showing a featureless blue continuum, at a location consistent with the nucleus of its host.
AstroNote 2026-193
Type: Object/s-Discovery/Classification
Released: 2026-06-12 15:11:57
ePESSTO+ spectroscopic classification of optical transients
E. Charleton (Southampton), M. Ghendrih (Lancaster), C.G. Touchard-Paxton (Trinity), P. Wiseman, N. Shiamtanis, P. Clar…
Source Group: ePESSTO+
Keywords: Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026odz [ZTF26aazngze]
RA, DEC:12:42:23.918, -13:22:38.30
(190.599659, -13.377305)
Redshift:0.07
Type:SN Ia
See object 2026odz [ZTF26aazngze]
,
2026ooa [ATLAS26gyi]
RA, DEC:15:22:38.638, -33:44:44.73
(230.660990, -33.745758)
Redshift:
Type:
See object 2026ooa [ATLAS26gyi]
,
2026okz [ATLAS26gvc]
RA, DEC:20:36:18.542, -51:37:26.56
(309.077257, -51.624046)
Redshift:0.05
Type:SN Ia-91T-like
See object 2026okz [ATLAS26gvc]
,
2026olp [ATLAS26gwl]
RA, DEC:22:35:38.444, -55:59:06.00
(338.910182, -55.985001)
Redshift:0.05
Type:SN Ia-91T-like
See object 2026olp [ATLAS26gwl]
,
2026mzm [ATLAS26fyd]
RA, DEC:23:53:24.065, -27:21:06.23
(358.350269, -27.351731)
Redshift:0.19
Type:
See object 2026mzm [ATLAS26fyd]
,
2026olw [ATLAS26gwt]
RA, DEC:22:49:46.803, -26:24:12.60
(342.445013, -26.403500)
Redshift:0.028
Type:SN Ib
See object 2026olw [ATLAS26gwt]
,
2026oot [GOTO26flr]
RA, DEC:01:52:39.675, -17:12:01.29
(28.165312, -17.200359)
Redshift:0.09
Type:SN Ic-BL
See object 2026oot [GOTO26flr]
This report includes classifications of 3 Type Ia's, 1 Type Ib, I Type Ic-BL, and two unclassified objects showing a blue continuum, one of which is consistent with the nucleus of its host.
AstroNote 2026-192
Type: Object/s-Data/Analysis
Released: 2026-06-12 13:06:53
NOEMA Upper Limits on SN2026obc
Michael Camilo, Anna Ho (Cornell), Michael Bremer (IRAM)
Source Group: ZTF
Related Objects:
2026obc
RA, DEC:01:07:49.433, +41:59:43.39
(16.955971, 41.995386)
Redshift:0.0195
Type:SN Icn
See object 2026obc
We report the 100 GHz non-detection of SN 2026obc
AstroNote 2026-191
Type: Object/s-Discovery/Classification
Released: 2026-06-11 16:43:15
ATLAS26hbm (AT2026oxc): discovery of a candidate SN in UGC 12394 with a shock cooling bump (95 Mpc)
D. R. Young (QUB), K. W. Smith (Oxford/QUB), M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, A. Aame…
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026oxc [ATLAS26hbm]
RA, DEC:23:09:30.805, +32:40:41.72
(347.378353, 32.678256)
Redshift:0.021832
Type:SN Ia
See object 2026oxc [ATLAS26hbm]
Here we report the ATLAS discovery of the transient ATLAS26hbm (AT2026oxc) in the galaxy UGC 12394, with magnitude m_w = 18.85 +/- 0.11. At a distance of 95 Mpc, the transient was discovered on MJD =…
AstroNote 2026-190
Type: Object/s-Discovery/Classification
Released: 2026-06-11 15:45:37
ePESSTO+ spectroscopic classification of optical transients
M. Ghendrih (Lancaster), C.G. Touchard-Paxton (Trinity), E. Charleton, P. Wiseman, M. Quilt, P. Clark (Southampton), A…
Source Group: ePESSTO+
Keywords: Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026ofr [ATLAS26gre]
RA, DEC:13:21:52.498, -36:38:07.54
(200.468742, -36.635427)
Redshift:0.003
Type:Nova
See object 2026ofr [ATLAS26gre]
,
2026nrl [ATLAS26gjn]
RA, DEC:19:27:28.750, -48:42:52.35
(291.869791, -48.714543)
Redshift:0.066
Type:SN Ia
See object 2026nrl [ATLAS26gjn]
This report includes classifications of a Type Ia and a nova.
AstroNote 2026-189
Type: Object/s-Data/Analysis
Released: 2026-06-10 21:31:41
SN2026obc: VLA Upper Limits on the Radio Emission from a Nearby Icn SN
Eli Wiston, Nayana AJ, Raffaella Margutti, Ryan Chornock, Itai Sfaradi, Natalie LeBaron (UC Berkeley), Danny Milisavlje…
Keywords: Transient, Supernova, Radio
Related Objects:
2026obc
RA, DEC:01:07:49.433, +41:59:43.39
(16.955971, 41.995386)
Redshift:0.0195
Type:SN Icn
See object 2026obc
Related Notes:
2026-176
2026-1892026-06-02 15:20:56
Title: Identification of AT2026obc: a Rapidly Rising, Possibly Luminous Blue Transient
Authors: Anna Y. Q. Ho (Cornell), Jacob Wise (LJMU), Jesper Sollerma…
Source Group: ZTF
,
2026-180
2026-1892026-06-03 18:05:56
Title: Classification of 2026obc/ZTF26aayznam as a SN Icn z = 0.0195 (85 Mpc)
Authors: Jacob Wise (LJMU), Daniel Perley (LJMU), Rahul Jayaraman (C…
Source Group: ZTF
We report the radio non-detection of the Icn SN2026obc at 10 GHz.
AstroNote 2026-188
Type: Object/s-Discovery/Classification
Released: 2026-06-08 16:36:09
ePESSTO+ spectroscopic classification of optical transients
E. Charleton (Southampton), M. Ghendrih (Lancaster), C.G. Touchard-Paxton (Trinity), P. Clark, M. Quilt, C. Dashwood B…
Source Group: ePESSTO+
Keywords: Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026itn [WFST260319bveen]
RA, DEC:14:50:11.607, +24:19:29.88
(222.548362, 24.324968)
Redshift:0.033
Type:SN IIn
See object 2026itn [WFST260319bveen]
,
2026ofe [ATLAS26gqz]
RA, DEC:12:30:13.634, -26:03:03.53
(187.556810, -26.050980)
Redshift:0.02
Type:SN II
See object 2026ofe [ATLAS26gqz]
,
2026oig [ATLAS26gsn]
RA, DEC:13:26:55.466, -31:25:25.91
(201.731107, -31.423863)
Redshift:0.044
Type:SN Ia
See object 2026oig [ATLAS26gsn]
,
2026ocs [ZTF26aazbfav]
RA, DEC:14:12:50.848, -07:42:05.42
(213.211866, -7.701506)
Redshift:0.07
Type:SN Ia
See object 2026ocs [ZTF26aazbfav]
,
2026ocz [ZTF26aazknmk]
RA, DEC:15:17:39.666, -24:55:07.62
(229.415275, -24.918784)
Redshift:0.043
Type:SN Ia-91T-like
See object 2026ocz [ZTF26aazknmk]
,
2026oed [ZTF19adgymjn]
RA, DEC:17:25:39.755, +21:57:18.90
(261.415645, 21.955251)
Redshift:0.055
Type:SN Ia
See object 2026oed [ZTF19adgymjn]
,
2026ohy [ZTF26aazuwhc]
RA, DEC:16:47:56.818, -25:01:44.76
(251.986740, -25.029100)
Redshift:0.018429
Type:SN Ia
See object 2026ohy [ZTF26aazuwhc]
,
2026ndn [ATLAS26gce]
RA, DEC:16:35:04.502, -82:48:31.63
(248.768759, -82.808786)
Redshift:0.07
Type:SN Ia
See object 2026ndn [ATLAS26gce]
,
2026nfw [ZTF26aaxnldg]
RA, DEC:20:41:11.858, +07:30:47.01
(310.299408, 7.513058)
Redshift:0.05
Type:SN
See object 2026nfw [ZTF26aaxnldg]
This report includes classifications of 6 Type Ia SNe and 3 Type II SNe
AstroNote 2026-187
Type: Object/s-Discovery/Classification
Released: 2026-06-07 16:39:04
ePESSTO+ spectroscopic classification of optical transients
E. Charleton (Southampton), M. Ghendrih (Lancaster), C.G. Touchard-Paxton (Trinity), P. Clark, M. Quilt, C. Dashwood B…
Source Group: ePESSTO+
Keywords: Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026nnr [ATLAS26ghz]
RA, DEC:16:36:08.776, -77:12:39.19
(249.036566, -77.210886)
Redshift:0.07
Type:SN Ia
See object 2026nnr [ATLAS26ghz]
,
2026nwb [ATLAS26gnw]
RA, DEC:01:14:29.709, -31:10:51.59
(18.623789, -31.180996)
Redshift:0.019
Type:SN Ia
See object 2026nwb [ATLAS26gnw]
This report includes classifications of 2 Type Ia SNe.
AstroNote 2026-186
Type: Object/s-Discovery/Classification
Released: 2026-06-07 16:35:54
Transient Classification with Gemini
A. Cikota (NOIRLab/Gemini South), P. Pessi (NCBJ), D. May (NOIRLab/Gemini South), V. Firpo (NOIRLab/Gemini South), F. G…
Source Group: GeminiClass
Keywords: Spectroscopy, Transient, Supernova
Related Objects:
2026ocv
RA, DEC:14:25:50.579, -26:58:07.04
(216.460744, -26.968623)
Redshift:0.087
Type:SN Ia
See object 2026ocv
,
2026ocz
RA, DEC:15:17:39.666, -24:55:07.62
(229.415275, -24.918784)
Redshift:0.043
Type:SN Ia-91T-like
See object 2026ocz
We report spectroscopic observations of two SNe Ia, one of which matches the SN Ia-91T-like subclass.
AstroNote 2026-185
Type: Object/s-Data/Analysis
Released: 2026-06-07 03:16:26
DAO Photometric follow up of selected transients
M R. Kendurkar (GSNST) and D. D. Balam (Dominion Astrophysical Observatory, National Research Council of Canada)
Source Group: GSNST
Keywords: Surveys, Photometry, Transient, Nova, Optical
Related Objects:
2025acf
RA, DEC:12:17:21.813, +03:58:26.65
(184.340886, 3.974070)
Redshift:
Type:
See object 2025acf
,
2025aec
RA, DEC:09:07:03.220, +38:19:34.98
(136.763416, 38.326382)
Redshift:0.055
Type:SN Ia
See object 2025aec
,
2025acp
RA, DEC:13:23:11.016, +32:10:41.37
(200.795899, 32.178159)
Redshift:0.042
Type:SN II
See object 2025acp
,
2025aet
RA, DEC:06:51:06.317, +19:46:40.29
(102.776322, 19.777859)
Redshift:0.07
Type:SN Ia
See object 2025aet
,
2025acv
RA, DEC:08:39:56.604, +19:38:40.13
(129.985851, 19.644480)
Redshift:0.032709
Type:SN Ia
See object 2025acv
,
2025aeg
RA, DEC:10:35:25.567, +16:33:26.80
(158.856530, 16.557446)
Redshift:
Type:
See object 2025aeg
,
2025ra
RA, DEC:12:41:30.961, +37:23:20.57
(190.379006, 37.389047)
Redshift:
Type:
See object 2025ra
,
2025re
RA, DEC:13:31:15.557, +29:22:16.30
(202.814821, 29.371196)
Redshift:
Type:
See object 2025re
,
2025uc
RA, DEC:09:15:43.983, +15:43:55.39
(138.933264, 15.732051)
Redshift:
Type:
See object 2025uc
,
2025wl
RA, DEC:08:03:11.614, +05:11:06.06
(120.798394, 5.185018)
Redshift:0.1
Type:SN Ia
See object 2025wl
,
2025acu
RA, DEC:10:33:26.138, +01:50:29.11
(158.358907, 1.841420)
Redshift:0.029
Type:SN Ia
See object 2025acu
,
2025aeb
RA, DEC:13:14:41.041, +19:58:19.59
(198.671003, 19.972109)
Redshift:
Type:
See object 2025aeb
,
2025hr
RA, DEC:12:34:20.039, +05:04:46.85
(188.583498, 5.079681)
Redshift:0.075
Type:SN Ia
See object 2025hr
,
2025lz
RA, DEC:06:01:21.070, +45:32:49.83
(90.337791, 45.547176)
Redshift:
Type:
See object 2025lz
,
2025nn
RA, DEC:07:17:39.340, +43:49:03.12
(109.413917, 43.817533)
Redshift:0.05
Type:SN Ia-91bg-like
See object 2025nn
,
2025ps
RA, DEC:06:54:45.564, +26:37:47.58
(103.689852, 26.629884)
Redshift:
Type:
See object 2025ps
,
2025qk
RA, DEC:03:43:23.083, +45:15:50.10
(55.846179, 45.263918)
Redshift:
Type:
See object 2025qk
We present (SDSS) g&r filter photometric follow up observations of selected optical transients obtained using the 1.82-m Plaskett telescope of the (Dominion Astrophysical Observatory) National Resear…
AstroNote 2026-184
Type: Object/s-Discovery/Classification
Released: 2026-06-06 17:25:15
ePESSTO+ spectroscopic classification of optical transients
C.G. Touchard-Paxton (Trinity), E. Charleton (Southampton), M. Ghendrih (Lancaster), N. Shiamtanis, P. Clark, P. Wisem…
Source Group: ePESSTO+
Keywords: Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026odr [ATLAS26gpw]
RA, DEC:01:23:02.862, -43:07:38.98
(20.761924, -43.127495)
Redshift:0.024
Type:SN Ia-91T-like
See object 2026odr [ATLAS26gpw]
,
2026nxd [ZTF26aayuvvb]
RA, DEC:01:31:59.782, +19:12:49.28
(22.999091, 19.213688)
Redshift:0.037
Type:SN II
See object 2026nxd [ZTF26aayuvvb]
,
2026obf [ATLAS26gpj]
RA, DEC:02:23:14.293, -15:08:54.46
(35.809553, -15.148460)
Redshift:0.0135
Type:SN II
See object 2026obf [ATLAS26gpj]
This report includes classifications of 1 Type Ia's and 2 Type II's.
AstroNote 2026-183
Type: Object/s-Discovery/Classification
Released: 2026-06-05 15:33:09
ATLAS26gre (AT2026ofr): discovery of a transient in NGC 5102 (4 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:
2026ofr [ATLAS26gre]
RA, DEC:13:21:52.498, -36:38:07.54
(200.468742, -36.635427)
Redshift:0.003
Type:Nova
See object 2026ofr [ATLAS26gre]
Here we report the ATLAS discovery of the transient ATLAS26gre (AT2026ofr) in galaxy NGC 5102 at magnitude m_o = 18.46 +/- 0.15. At a distance of 4 Mpc (redshift independent, from NED), the transient…
AstroNote 2026-182
Type: Object/s-Discovery/Classification
Released: 2026-06-05 14:30:25
ePESSTO+ spectroscopic classification of optical transients
C.G. Touchard-Paxton (Trinity), M. Ghendrih (Lancaster), E. Charleton, C. Dashwood-Brown, N. Shiamtanis , P. Wiseman…
Source Group: ePESSTO+
Keywords: Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026nmw [GOTO26fdl]
RA, DEC:12:46:43.486, -40:01:30.05
(191.681192, -40.025014)
Redshift:0.015
Type:SN IIb
See object 2026nmw [GOTO26fdl]
This report includes a classification of 1 Type IIb supernova.
AstroNote 2026-181
Type: Object/s-Discovery/Classification
Released: 2026-06-04 15:30:45
ePESSTO+ spectroscopic classification of optical transients
M. Ghendrih (Lancaster), E. Charleton (Southampton), C.G. Touchard-Paxton (Trinity), P. Wiseman, P. Clark, M. Quilt, N…
Source Group: ePESSTO+
Keywords: Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026nml [ATLAS26ghq]
RA, DEC:18:27:35.636, +18:48:26.06
(276.898485, 18.807240)
Redshift:0.016
Type:SN II
See object 2026nml [ATLAS26ghq]
,
2026nxa [ZTF26aayxacs]
RA, DEC:11:10:58.819, -10:02:40.92
(167.745080, -10.044699)
Redshift:0.03
Type:SN Ia
See object 2026nxa [ZTF26aayxacs]
,
2026nyn [ZTF26aazdlqy]
RA, DEC:15:32:53.230, -04:57:03.59
(233.221791, -4.950998)
Redshift:0
Type:
See object 2026nyn [ZTF26aazdlqy]
This report includes classifications of 1 Type Ia and 1 Type II.
AstroNote 2026-180
Type: Object/s-Discovery/Classification
Released: 2026-06-03 18:05:56
Classification of 2026obc/ZTF26aayznam as a SN Icn z = 0.0195 (85 Mpc)
Jacob Wise (LJMU), Daniel Perley (LJMU), Rahul Jayaraman (Cornell), Gokul Srinivasaragavan (UMD), K-Ryan Hinds (Caltech…
Source Group: ZTF
Keywords: Photometry, Spectroscopy, Transient
Related Objects:
2026obc [ZTF26aayznam]
RA, DEC:01:07:49.433, +41:59:43.39
(16.955971, 41.995386)
Redshift:0.0195
Type:SN Icn
See object 2026obc [ZTF26aayznam]
,
2019jc [ATLAS19aep]
RA, DEC:21:55:40.993, +24:54:20.67
(328.920804, 24.905742)
Redshift:0.01948
Type:SN Icn
See object 2019jc [ATLAS19aep]
Related Notes:
2024-340
2026-1802024-11-16 06:37:08
Title: The First Science Spectrum with the Next Generation Palomar Spectrograph (NGPS): Classification of ZTF24abrfcqd as a Type Ia Supernova
Authors: Mansi M. Kasliwal, Christoffer Fremling, Lin Yan, Kaustav D…
Source Group: ZTF
,
2026-176
2026-1802026-06-02 15:20:56
Title: Identification of AT2026obc: a Rapidly Rising, Possibly Luminous Blue Transient
Authors: Anna Y. Q. Ho (Cornell), Jacob Wise (LJMU), Jesper Sollerma…
Source Group: ZTF
We present P200 NGPS spectroscopic and Liverpool TelescopeLT IO:O photometric observations of AT2026obc/ZTF26aayznam. We find it to show strong C II, C III and C IV P-Cygni features with a width of ~…
AstroNote 2026-179
Type: Object/s-Discovery/Classification
Released: 2026-06-03 15:36:12
Transient Classification with Gemini
P. Pessi (NCBJ), A. Cikota (NOIRLab/Gemini South), D. May (NOIRLab/Gemini South), V. Firpo (NOIRLab/Gemini South), F. G…
Source Group: GeminiClass
Keywords: Spectroscopy, Transient, Supernova
Related Objects:
2026nxt
RA, DEC:13:43:56.763, -27:03:09.69
(205.986511, -27.052691)
Redshift:0.084
Type:SN Ia-91T-like
See object 2026nxt
,
2026nyg
RA, DEC:16:20:03.853, -03:15:55.47
(245.016052, -3.265408)
Redshift:0.062
Type:SN Ia-91T-like
See object 2026nyg
,
2026nzw
RA, DEC:14:10:58.063, -20:08:43.95
(212.741930, -20.145542)
Redshift:0.034
Type:SN Ia
See object 2026nzw
We report spectroscopic observations of three SNe Ia, two of which match the SN Ia-91T-like subclass.
AstroNote 2026-178
Type: Object/s-Discovery/Classification
Released: 2026-06-02 19:38:07
ATLAS26gpj (AT2026obf): discovery of a candidate SN in MCG -03-07-007 (53 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:
2026obf [ATLAS26gpj]
RA, DEC:02:23:14.293, -15:08:54.46
(35.809553, -15.148460)
Redshift:0.0135
Type:SN II
See object 2026obf [ATLAS26gpj]
Here we report the ATLAS discovery of the transient ATLAS26gpj (AT2026obf) in galaxy MCG -03-07-007 at magnitude m_o = 16.90 +/- 0.07. At a distance of 53 Mpc, the transient was discovered on MJD = 6…
AstroNote 2026-177
Type: Object/s-Discovery/Classification
Released: 2026-06-02 16:39:44
Transient Classification with Gemini
A. Cikota (NOIRLab/Gemini South), P. Pessi (NCBJ), D. May (NOIRLab/Gemini South), V. Firpo (NOIRLab/Gemini South), F. G…
Source Group: GeminiClass
Keywords: Spectroscopy, Transient, Supernova
Related Objects:
2026nul
RA, DEC:22:39:47.869, -14:35:51.58
(339.949455, -14.597662)
Redshift:0.074
Type:SN Ia
See object 2026nul
,
2026nuz
RA, DEC:19:51:27.557, -15:18:27.20
(297.864820, -15.307557)
Redshift:
Type:CV
See object 2026nuz
,
2026nvd
RA, DEC:23:58:13.029, -24:54:23.72
(359.554287, -24.906588)
Redshift:0.06
Type:SN Ia-pec
See object 2026nvd
,
2026nwg
RA, DEC:00:58:47.137, -20:50:26.68
(14.696406, -20.840743)
Redshift:0.022
Type:SN II
See object 2026nwg
We report spectroscopic observations of one SN Ia, one SN Ia-pec, one CV and one SN II
AstroNote 2026-176
Type: Object/s-Data/Analysis
Released: 2026-06-02 15:30:03
Identification of AT2026obc: a Rapidly Rising, Possibly Luminous Blue Transient
Anna Y. Q. Ho (Cornell), Jacob Wise (LJMU), Jesper Sollerman (OKC) on behalf of a larger collaboration
Source Group: ZTF
Related Objects:
2026obc
RA, DEC:01:07:49.433, +41:59:43.39
(16.955971, 41.995386)
Redshift:0.0195
Type:SN Icn
See object 2026obc
We report the identification of a rapidly brightening (0.4 mag/day), blue (g-r = -0.35 mag), possibly luminous (M = -21.3 mag) transient. We encourage follow-up observations to determine whether the …
AstroNote 2026-175
Type: Object/s-Discovery/Classification
Released: 2026-06-02 11:50:25
Transient Classification with Gemini
A. Cikota (NOIRLab/Gemini South), P. Pessi (NCBJ), D. May (NOIRLab/Gemini South), V. Firpo (NOIRLab/Gemini South), F. G…
Source Group: GeminiClass
Keywords: Spectroscopy, Transient, Supernova
Related Objects:
2026nvg
RA, DEC:11:27:13.763, -37:47:14.93
(171.807347, -37.787480)
Redshift:0.058
Type:SN Ia
See object 2026nvg
,
2026nwk
RA, DEC:11:42:24.425, +10:40:07.09
(175.601772, 10.668636)
Redshift:0.082
Type:SN Ia
See object 2026nwk
We report spectroscopic observations of two SNe Ia.
AstroNote 2026-174
Type: Object/s-Data/Analysis
Released: 2026-06-01 14:27:52
Einstein Probe Follow-up X-ray Telescope (FXT) Detection of AT2026nik
Rahul Jayaraman (Cornell), Daniel Perley (LJMU), Anna Y. Q. Ho (Cornell), Jacob Wise (LJMU)
Related Objects:
2026nik [ZTF26aaxutnf]
RA, DEC:11:22:52.120, -06:13:18.84
(170.717165, -6.221901)
Redshift:0.182
Type:
See object 2026nik [ZTF26aaxutnf]
We report our analysis of the X-ray source detected at the position of the candidate luminous fast blue optical transient AT2026nik.
AstroNote 2026-173
Type: Object/s-Discovery/Classification
Released: 2026-05-31 21:57:07
Transient Classification with Gemini
P. Pessi (NCBJ), A. Cikota (NOIRLab/Gemini South), V. Firpo (NOIRLab/Gemini South), F. Gran (NOIRLab/Gemini South), L…
Source Group: GeminiClass
Keywords: Spectroscopy, Transient, Supernova
Related Objects:
2026nuh
RA, DEC:23:17:23.114, -41:54:50.59
(349.346310, -41.914052)
Redshift:0.056
Type:SN Ia
See object 2026nuh
,
2026nuv
RA, DEC:11:20:31.594, -09:00:41.65
(170.131643, -9.011571)
Redshift:0.02
Type:SN Ia
See object 2026nuv
,
2026mza
RA, DEC:10:04:39.248, +02:30:26.81
(151.163533, 2.507447)
Redshift:0.12
Type:SN Ia
See object 2026mza
We report spectroscopic observations of three SNe Ia.
AstroNote 2026-172
Type: Object/s-Discovery/Classification
Released: 2026-05-31 17:33:09
Spectroscopic Classification of the Strongly Lensed Type Ia Supernova SN 2026ngr at z = 0.95
C. Liu, L. Kwok (Northwestern, CIERA), A. Goobar, J. Johansson (Stockholm University), J. Hinkle (UIUC)
Source Group: ZTF
Keywords: Supernova, Lensing, Infra-Red
Related Objects:
2026ngr [ZTF26aaxhpdm]
RA, DEC:13:58:24.302, -03:02:49.29
(209.601256, -3.047026)
Redshift:0.95
Type:SN Ia
See object 2026ngr [ZTF26aaxhpdm]
We report the Magellan/FIRE near-infrared spectroscopic classification of the strongly lensed supernova candidate SN 2026ngr. Cross-correlation template matching confirms the transient is a Type Ia s…
AstroNote 2026-171
Type: Object/s-Discovery/Classification
Released: 2026-05-31 00:10:44
ATLAS26goh (AT2026nwj): discovery of a candidate SN in NGC 2987 (54 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:
2026nwj [ATLAS26goh]
RA, DEC:09:45:41.007, +04:56:56.57
(146.420864, 4.949048)
Redshift:0.012479
Type:SN II
See object 2026nwj [ATLAS26goh]
Here we report the ATLAS discovery of the transient ATLAS26goh (AT2026nwj) in galaxy NGC 2987 at magnitude m_o = 18.42 +/- 0.17. At a distance of 54 Mpc (redshift independent, from NED), the transien…
AstroNote 2026-170
Type: Object/s-Discovery/Classification
Released: 2026-05-30 23:45:06
ATLAS26gog (AT2026nwg): discovery of a candidate SN in NGC 0320 (73 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:
2026nwg [ATLAS26gog]
RA, DEC:00:58:47.137, -20:50:26.68
(14.696406, -20.840743)
Redshift:0.022
Type:SN II
See object 2026nwg [ATLAS26gog]
Here we report the ATLAS discovery of the transient ATLAS26gog (AT2026nwg) in galaxy NGC 0320 at magnitude m_o = 17.36 +/- 0.06. At a distance of 73 Mpc, the transient was discovered on MJD = 61187.3…
AstroNote 2026-169
Type: Object/s-Discovery/Classification
Released: 2026-05-30 23:44:45
ATLAS26gof (AT2026nwf): discovery of a candidate SN in ESO 298- G 008 (59 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:
2026nwf [ATLAS26gof]
RA, DEC:02:06:14.472, -41:31:14.58
(31.560301, -41.520716)
Redshift:
Type:
See object 2026nwf [ATLAS26gof]
Here we report the ATLAS discovery of the transient ATLAS26gof (AT2026nwf) in galaxy ESO 298- G 008 at magnitude m_o = 18.40 +/- 0.14. At a distance of 59 Mpc (redshift independent, from NED), the tr…
AstroNote 2026-168
Type: Object/s-Discovery/Classification
Released: 2026-05-30 23:44:26
ATLAS26goe (AT2026nwe): discovery of a candidate SN in ESO 416- G 033 (70 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:
2026nwe [ATLAS26goe]
RA, DEC:02:49:35.557, -30:59:49.59
(42.398154, -30.997108)
Redshift:0.026
Type:SN Ia
See object 2026nwe [ATLAS26goe]
Here we report the ATLAS discovery of the transient ATLAS26goe (AT2026nwe) in galaxy ESO 416- G 033 at magnitude m_o = 17.12 +/- 0.08. At a distance of 70 Mpc, the transient was discovered on MJD = 6…
AstroNote 2026-167
Type: Object/s-Discovery/Classification
Released: 2026-05-30 17:35:46
Transient Classification with Gemini
A. Cikota (NOIRLab/Gemini South), P. Pessi (NCBJ), V. Firpo (NOIRLab/Gemini South), F. Gran (NOIRLab/Gemini South), L. …
Source Group: GeminiClass
Keywords: Spectroscopy, Transient, Supernova
Related Objects:
2026mum
RA, DEC:01:37:54.739, -33:12:07.10
(24.478079, -33.201972)
Redshift:0.02
Type:SN II
See object 2026mum
,
2026nus
RA, DEC:00:39:46.559, -37:37:05.41
(9.943996, -37.618169)
Redshift:0.06
Type:SN Ia
See object 2026nus
We report spectroscopic observations of one SN II and one SN Ia.
AstroNote 2026-166
Type: Object/s-Discovery/Classification
Released: 2026-05-30 13:10:32
ePESSTO+ spectroscopic classification of an optical transient
S. Vazhayil (UDP), J. Khaulsay (Cardiff), A. Aryan, C.-H. Lai, A. Dutta, A. Sankar.K, Yu-Hsing Lee, Ting-Wan Chen (NCU)…
Source Group: ePESSTO+
Keywords: Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026nir [ATLAS26gfd]
RA, DEC:13:27:56.121, -31:00:27.18
(201.983839, -31.007551)
Redshift:0.045
Type:SN Ia
See object 2026nir [ATLAS26gfd]
This report includes classification of one Type Ia supernova.
AstroNote 2026-165
Type: Object/s-Discovery/Classification
Released: 2026-05-30 08:25:43
ZTF classification of ZTF26aavrgaw / AT2026nuq and ZTF26aasemes / AT2026kce as likely TDEs
Erica Hammerstein (UC Berkeley), Ryan Chornock (UC Berkeley), Itai Sfaradi (UC Berkeley), Jonathan Carney (UNC), Robert…
Source Group: ZTF
Related Objects:
2026nuq [ZTF26aavrgaw]
RA, DEC:14:43:37.083, +58:53:08.27
(220.904511, 58.885630)
Redshift:0.16
Type:TDE-H-He
See object 2026nuq [ZTF26aavrgaw]
,
2026kce [ZTF26aasemes]
RA, DEC:08:51:41.457, +42:50:34.82
(132.922739, 42.843004)
Redshift:0.18
Type:TDE-H
See object 2026kce [ZTF26aasemes]
We report the classification of the optical transients ZTF26aavrgaw / AT2026nuq and ZTF26aasemes / AT2026kce as likely TDEs. The sources were selected by the tdescore ML classifier (Stein+2024, doi: …
AstroNote 2026-164
Type: Object/s-Discovery/Classification
Released: 2026-05-30 07:04:24
SLSN candidates from NEEDLE on Lasair
X. Sheng, D. Magill, 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:
2026mxk [ZTF26aawzwus]
RA, DEC:13:40:56.725, +08:19:09.38
(205.236356, 8.319272)
Redshift:0.101
Type:SN IIn
See object 2026mxk [ZTF26aawzwus]
,
ZTF26aauvqcg
RA, DEC:00:00:00.000,
(0.000000, 0.000000)
Redshift:
Type:
ZTF26aauvqcg
We report 2 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 2026-163
Type: Object/s-Discovery/Classification
Released: 2026-05-29 21:36:33
ATLAS26gkx (AT2026nti): discovery of a candidate SN in ESO 414- G 008 (46 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:
2026nti [ATLAS26gkx]
RA, DEC:01:51:59.391, -31:44:18.51
(27.997461, -31.738475)
Redshift:0.011
Type:SN IIP
See object 2026nti [ATLAS26gkx]
Here we report the ATLAS discovery of the transient ATLAS26gkx (AT2026nti) in galaxy ESO 414- G 008 at magnitude m_o = 17.16 +/- 0.04. At a distance of 46 Mpc (redshift independent, from NED), the tr…
AstroNote 2026-162
Type: Object/s-Discovery/Classification
Released: 2026-05-29 21:33:09
ATLAS26gmb (AT2026nur): discovery of a candidate SN in NGC 0897 (63 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:
2026nur [ATLAS26gmb]
RA, DEC:02:21:08.926, -33:42:06.19
(35.287193, -33.701719)
Redshift:0.0067
Type:SN Ia-91bg-like
See object 2026nur [ATLAS26gmb]
Here we report the ATLAS discovery of the transient ATLAS26gmb (AT2026nur) in galaxy NGC 0897 at magnitude m_o = 16.60 +/- 0.02. At a distance of 63 Mpc, the transient was discovered on MJD = 61188.1…
AstroNote 2026-161
Type: Object/s-Discovery/Classification
Released: 2026-05-29 21:30:46
ATLAS26gmm (AT2026nuv): discovery of a candidate SN in NGC 3635 (90 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:
2026nuv [ATLAS26gmm]
RA, DEC:11:20:31.594, -09:00:41.65
(170.131643, -9.011571)
Redshift:0.02
Type:SN Ia
See object 2026nuv [ATLAS26gmm]
Here we report the ATLAS discovery of the transient ATLAS26gmm (AT2026nuv) in galaxy NGC 3635 at magnitude m_o = 17.34 +/- 0.07. At a distance of 90 Mpc (redshift independent, from NED), the transien…
AstroNote 2026-160
Type: Object/s-Discovery/Classification
Released: 2026-05-29 21:25:54
ATLAS26gmn (AT2026nuw): discovery of a candidate SN in UGC 04451 (89 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:
2026nuw [ATLAS26gmn]
RA, DEC:08:34:31.072, +75:09:17.68
(128.629469, 75.154911)
Redshift:
Type:
See object 2026nuw [ATLAS26gmn]
Here we report the ATLAS discovery of the transient ATLAS26gmn (AT2026nuw) in galaxy UGC 04451 at magnitude m_w = 17.87 +/- 0.09. At a distance of 89 Mpc, the transient was discovered on MJD = 61185…
AstroNote 2026-159
Type: Object/s-Discovery/Classification
Released: 2026-05-29 12:32:42
ePESSTO+ spectroscopic classification of optical transients
J. Khaulsay (Cardiff), S. Vazhayil (UDP), A. Aryan, C.-H. Lai, A. Dutta, T.-W. Chen (NCU) J. Sollerman (Stockholm), S. …
Source Group: ePESSTO+
Keywords: Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026nbd [GOTO26eyc]
RA, DEC:14:48:38.815, +18:16:34.99
(222.161729, 18.276386)
Redshift:0.04
Type:SN Ia-SC
See object 2026nbd [GOTO26eyc]
,
2026ndk [ATLAS26gcd]
RA, DEC:00:53:50.253, -67:36:34.49
(13.459387, -67.609580)
Redshift:0.031
Type:SN II
See object 2026ndk [ATLAS26gcd]
This report contains one Type Ia and one Type II supernova
AstroNote 2026-158
Type: Object/s-Data/Analysis
Released: 2026-05-28 19:27:14
Photometric follow-up of a Type-Ia Supernova SN 2025fvw with BHTOM.space Global Telescope Network
P.J. Mikolajczyk (U.Wroclaw/NCBJ, PL), L. Wyrzykowski (U.Warsaw/NCBJ, PL/EASST.eu), J. Majumdar (U.Warsaw, PL), P. Pess…
Source Group: BHTOM
Keywords: Time-domain, Catalogs, Photometry, Transient, Optical
Related Objects:
2025fvw
RA, DEC:15:35:25.783, +12:03:27.80
(233.857431, 12.057722)
Redshift:0.0061
Type:SN Ia
See object 2025fvw
We report on the optical photometric follow-up of SN 2025fvw conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-157
Type: Object/s-Discovery/Classification
Released: 2026-05-28 16:27:25
Transient Classification with Gemini
A. Cikota (NOIRLab/Gemini South), P. Pessi (NCBJ), V. Firpo (NOIRLab/Gemini South), F. Gran (NOIRLab/Gemini South), L. …
Source Group: GeminiClass
Keywords: Spectroscopy, Transient, Supernova
Related Objects:
2026nrq
RA, DEC:21:42:24.381, -20:21:09.27
(325.601587, -20.352575)
Redshift:0.085
Type:SN Ia
See object 2026nrq
We report spectroscopic observations of one SN Ia
AstroNote 2026-156
Type: Object/s-Discovery/Classification
Released: 2026-05-28 09:15:29
AT2026ngr as a Candidate Lensed Supernova from ZTF
Joel Johansson, Ariel Goobar (OKC, Stockholm university)
Related Objects:
2026ngr [ZTF26aaxhpdm]
RA, DEC:13:58:24.302, -03:02:49.29
(209.601256, -3.047026)
Redshift:0.95
Type:SN Ia
See object 2026ngr [ZTF26aaxhpdm]
We report AT2026ngr (ZTF26aaxhpdm) as a candidate strongly gravitationally lensed supernova identified in data from the Zwicky Transient Facility (ZTF). Spectroscopic and high-resolution imaging foll…

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