Showing results 1 to 50 out of 324
AstroNote 2026-241
Type: Object/s-Data/Analysis
Released: 2026-08-08 13:18:22
NEOWISE mid-infrared pre-identification of the late-time rebrightening supernovae SN 2020jfv and SN 2020izc
Kohki Uno (Columbia), Kishalay De (Columbia), Geoffrey Mo (Caltech/Carnegie Observatories) , Viraj Karambelkar (Columbi…
Keywords: Transient, Supernova, Infra-Red, Optical, Ultra-Violet
Related Objects:
2020jfv
RA, DEC:23:06:35.750, +00:36:43.60
(346.648958, 0.612111)
Redshift:0.01709
Type:SN IIb
See object 2020jfv
,
2020izc
RA, DEC:00:05:02.510, -07:06:03.02
(1.260458, -7.100839)
Redshift:0.012699
Type:SN II
See object 2020izc
We report the prior identification of late-time mid-infrared rebrightening in SN 2020jfv and SN 2020izc with WISE/NEOWISE, more than two years before their optical rebrightening in LSST EDP2. Persist…
AstroNote 2026-239
Type: Object/s-Data/Analysis
Released: 2026-08-05 22:29:18
Flash ionisation features in the rapidly evolving transient SN2026wpd
S. Srivastav and S. J. Smartt (Oxford)
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026wpd [ATLAS26jiy]
RA, DEC:01:28:20.620, +40:13:26.76
(22.085915, 40.224099)
Redshift:0.025
Type:SN Ibn/Icn
See object 2026wpd [ATLAS26jiy]
Related Notes:
2026-235
2026-2392026-08-02 18:03:06
Title: ATLAS26jiy (AT2026wpd): discovery of a candidate SN in CGCG 537-004 (100 Mpc)
Authors: K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, T. Moore…
Source Group: ATLAS
We present followup observations of the fast evolving, blue and luminous transient SN 2026wpd. The light curve shows a rapid rise to an absolute magnitude of ~ -19 in ~6 days. The LT spectrum display…
AstroNote 2026-238
Type: Object/s-Data/Analysis
Released: 2026-08-05 02:04:08
Identification of Transient Precursors and Late-Time Rebrightening/Flattening in LSST EDP2
Yize Dong (Harvard/CfA), V. Ashley Villar (Harvard/CfA), Ryan J. Foley (UCSC), Qinan Wang (MIT), Gautham Narayan (UIUC/…
Source Group: VHU-TDA
Keywords: Spectroscopy, Transient, Supernova, TDE, Optical
Related Objects:
2017hcc
RA, DEC:00:03:50.590, -11:28:28.60
(0.960792, -11.474611)
Redshift:0.0173
Type:SN IIn
See object 2017hcc
,
2019iid
RA, DEC:12:20:31.469, +06:01:48.69
(185.131120, 6.030193)
Redshift:0.1
Type:SN Ia
See object 2019iid
,
2019mav
RA, DEC:22:48:17.121, -02:49:07.24
(342.071338, -2.818677)
Redshift:0.077
Type:SN Ia
See object 2019mav
,
2020izc
RA, DEC:00:05:02.510, -07:06:03.02
(1.260458, -7.100839)
Redshift:0.012699
Type:SN II
See object 2020izc
,
2020jfv
RA, DEC:23:06:35.750, +00:36:43.60
(346.648958, 0.612111)
Redshift:0.01709
Type:SN IIb
See object 2020jfv
,
2020usa
RA, DEC:22:26:13.590, -02:16:06.71
(336.556625, -2.268531)
Redshift:0.263
Type:SLSN-II
See object 2020usa
,
2020zpf
RA, DEC:23:12:40.484, -11:56:02.05
(348.168683, -11.933902)
Redshift:0.1
Type:SN Ia
See object 2020zpf
,
2020zso
RA, DEC:22:22:17.130, -07:15:59.08
(335.571375, -7.266411)
Redshift:0.061
Type:TDE
See object 2020zso
,
2021qth
RA, DEC:20:11:38.926, -21:09:36.64
(302.912191, -21.160179)
Redshift:0.0805
Type:TDE
See object 2021qth
,
2021zon
RA, DEC:00:29:50.931, -06:28:24.46
(7.462213, -6.473462)
Redshift:0.044
Type:SN IIb
See object 2021zon
,
2022pul
RA, DEC:12:26:48.846, +08:26:55.32
(186.703526, 8.448701)
Redshift:0.003
Type:SN Ia
See object 2022pul
,
2022rvy
RA, DEC:00:17:35.392, -11:17:10.46
(4.397468, -11.286240)
Redshift:0.099
Type:SN Ia
See object 2022rvy
,
2023swf
RA, DEC:21:05:58.530, -14:50:30.34
(316.493875, -14.841761)
Redshift:0.024
Type:SN II
See object 2023swf
,
2024kce
RA, DEC:12:29:49.560, +08:12:48.49
(187.456500, 8.213469)
Redshift:0.003
Type:SN Ia-pec
See object 2024kce
,
2024lwa
RA, DEC:22:32:47.058, -09:26:49.23
(338.196074, -9.447009)
Redshift:0.05689
Type:SN II
See object 2024lwa
,
2025aawk
RA, DEC:00:25:33.678, +02:16:17.57
(6.390324, 2.271548)
Redshift:0.0778
Type:SN II
See object 2025aawk
,
2025uue
RA, DEC:00:20:05.076, +08:30:41.89
(5.021151, 8.511636)
Redshift:0.01874
Type:SN IIn
See object 2025uue
,
2026ejf
RA, DEC:04:04:37.779, -48:30:07.25
(61.157411, -48.502013)
Redshift:0.96
Type:SLSN-I
See object 2026ejf
,
2026fgl
RA, DEC:09:56:52.360, +03:28:11.71
(149.218165, 3.469919)
Redshift:0.164
Type:SN Ia
See object 2026fgl
,
2026gzf
RA, DEC:09:59:42.872, +00:25:06.38
(149.928635, 0.418438)
Redshift:0.0343
Type:SN Ic-BL
See object 2026gzf
,
2026muw
RA, DEC:21:23:29.961, -07:40:49.04
(320.874838, -7.680289)
Redshift:0.061582
Type:SN IIn
See object 2026muw
,
2026pag
RA, DEC:21:46:05.755, -08:58:40.30
(326.523977, -8.977861)
Redshift:0.081
Type:TDE
See object 2026pag
We report the identification of 8 candidate transient precursors and 13 transients exhibiting unusually long-lived emission, late-time light-curve flattening, or rebrightening in LSST EDP2 coadded im…
AstroNote 2026-237
Type: Object/s-Data/Analysis
Released: 2026-08-04 22:46:40
DAO and UBC Southern Observatory photometric follow-up of selected transients (2026 July)
S. Chan (University of British Columbia - UBC), A. C. Boley (UBC), A. Araleh (UBC) & D. D. Balam (DAO/NRC)
Source Group: DAO_OTS
Keywords: Photometry
Related Objects:
2026rhh
RA, DEC:18:32:23.579, +50:50:26.16
(278.098245, 50.840599)
Redshift:
Type:
See object 2026rhh
,
2026rla
RA, DEC:16:59:08.298, +40:26:51.49
(254.784575, 40.447635)
Redshift:
Type:
See object 2026rla
,
2026wbo
RA, DEC:15:37:08.700, +38:44:26.60
(234.286250, 38.740722)
Redshift:
Type:
See object 2026wbo
,
2026wcb
RA, DEC:16:17:39.868, +29:41:24.41
(244.416115, 29.690113)
Redshift:
Type:
See object 2026wcb
,
2026wki
RA, DEC:19:41:08.176, +60:49:17.78
(295.284065, 60.821605)
Redshift:
Type:
See object 2026wki
,
2026vlu
RA, DEC:20:24:46.321, +19:59:08.03
(306.193003, 19.985563)
Redshift:
Type:
See object 2026vlu
,
2026wht
RA, DEC:18:25:54.859, +08:49:04.34
(276.478581, 8.817872)
Redshift:
Type:
See object 2026wht
,
2026wjs
RA, DEC:23:47:50.899, +49:28:49.68
(356.962079, 49.480466)
Redshift:0.032202
Type:SN Ia
See object 2026wjs
,
2026ryu
RA, DEC:19:37:44.088, -05:35:43.37
(294.433700, -5.595381)
Redshift:
Type:
See object 2026ryu
,
2026ris
RA, DEC:15:53:49.860, -25:29:41.60
(238.457750, -25.494889)
Redshift:
Type:
See object 2026ris
,
2026roc
RA, DEC:20:02:39.395, -25:33:51.41
(300.664144, -25.564281)
Redshift:
Type:CV
See object 2026roc
,
2026tqt
RA, DEC:18:26:55.120, -17:32:28.10
(276.729667, -17.541139)
Redshift:
Type:
See object 2026tqt
,
2026vhh
RA, DEC:00:47:19.350, -72:40:04.60
(11.830625, -72.667944)
Redshift:
Type:
See object 2026vhh
We present (SDSS) g&r filter (DAO) and (Kron-Cousins) B-V, V & V-R) photometric follow up observations of selected optical transients obtained using the 1.82-m Plaskett telescope of the (Dominion As…
AstroNote 2026-233
Type: Object/s-Data/Analysis
Released: 2026-07-31 07:43:02
Photometric observations of a Galactic Nova AT 2026rdg with BHTOM.space Global Telescope Network
P.J. Mikolajczyk (U.Wroclaw/NCBJ, PL), L. Wyrzykowski (U.Warsaw/NCBJ, PL/EASST.eu), F.-J. Hambsch (ROAD Observatory, Ch…
Source Group: BHTOM
Keywords: Photometry, Transient, Nova, Infra-Red, Optical
Related Objects:
2026rdg
RA, DEC:19:14:31.366, +12:03:53.60
(288.630693, 12.064890)
Redshift:0
Type:Nova
See object 2026rdg
We report on the optical photometric follow-up of AT 2026rdg conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-222
Type: Object/s-Data/Analysis
Released: 2026-07-18 10:22:43
Gamma-ray upper observations of SN 2026sqf with MAGIC
David Paneque (MPP Munich), Andrea Simongini (INAF-Rome, Uniroma2), Francesco Schiavone (INFN-Bari), on behalf of the M…
Related Objects:
2026sqf
RA, DEC:10:38:47.961, +53:30:34.10
(159.699839, 53.509471)
Redshift:0.003312
Type:SN Ia-CSM
See object 2026sqf
We report non-detection of gamma rays above 800 GeV of the nearby SN 2026sqf with the MAGIC telescopes.
AstroNote 2026-219
Type: Object/s-Data/Analysis
Released: 2026-07-16 11:33:14
SN 2026sqf: upper limits from an IceCube neutrino search
Yuhua Yao (University of Wisconsin-Madison), Angela Zegarelli (Ruhr-University Bochum) for the IceCube Collaboration
Keywords: Supernova, Neutrinos
Related Objects:
2026sqf [ZTF26abfmmvq]
RA, DEC:10:38:47.961, +53:30:34.10
(159.699839, 53.509471)
Redshift:0.003312
Type:SN Ia-CSM
See object 2026sqf [ZTF26abfmmvq]
Related Notes:
2026-214
2026-2192026-07-13 02:43:44
Title: Photometric Follow-up of SN 2026sqf with BHTOM.space Global Telescope Network
Authors: J. Majumdar (U.Warsaw), L. Wyrzykowski (U.Warsaw/NCBJ/EASST…
Source Group: BHTOM
AstroNote 2026-218
Type: Object/s-Data/Analysis
Released: 2026-07-16 04:44:10
DAO Photometric follow up of selected transients
M R. Kendurkar (GSNST)
Source Group: GSNST
Keywords: Surveys, Photometry, Transient, Nova, Optical
Related Objects:
2025hcw
RA, DEC:11:10:37.269, +35:25:31.31
(167.655287, 35.425364)
Redshift:0.075083
Type:SN Ia
See object 2025hcw
,
2025heg
RA, DEC:18:20:46.154, +19:37:30.82
(275.192307, 19.625227)
Redshift:0.0298
Type:SN Ia
See object 2025heg
,
2025hes
RA, DEC:17:01:47.829, +24:42:26.29
(255.449289, 24.707303)
Redshift:0.049751
Type:SN Ia
See object 2025hes
,
2025hkd
RA, DEC:12:58:03.001, +09:43:24.05
(194.512505, 9.723347)
Redshift:0.031
Type:SN Ia
See object 2025hkd
,
2025hmf
RA, DEC:19:43:37.401, +48:23:54.78
(295.905837, 48.398551)
Redshift:
Type:
See object 2025hmf
,
2025hnv
RA, DEC:14:37:59.937, +14:27:17.51
(219.499738, 14.454865)
Redshift:0.052
Type:SN Ia
See object 2025hnv
,
2025hoq
RA, DEC:16:01:43.972, +31:28:27.67
(240.433215, 31.474353)
Redshift:
Type:
See object 2025hoq
,
2025hvq
RA, DEC:11:31:26.531, +15:43:39.55
(172.860544, 15.727652)
Redshift:
Type:
See object 2025hvq
,
2025hxf
RA, DEC:15:53:05.008, +20:38:08.53
(238.270867, 20.635703)
Redshift:0.0262
Type:SN II
See object 2025hxf
,
2025hym
RA, DEC:14:35:25.751, +26:40:15.36
(218.857297, 26.670933)
Redshift:
Type:
See object 2025hym
,
2025hzp
RA, DEC:13:50:32.107, +23:21:13.15
(207.633778, 23.353653)
Redshift:
Type:
See object 2025hzp
,
2025iau
RA, DEC:13:50:44.931, +49:20:29.60
(207.687211, 49.341556)
Redshift:0.044
Type:SN Ia
See object 2025iau
,
2025icd
RA, DEC:16:03:01.079, +44:34:45.43
(240.754494, 44.579285)
Redshift:
Type:
See object 2025icd
,
2025ico
RA, DEC:15:40:30.911, +34:09:14.73
(235.128796, 34.154091)
Redshift:
Type:
See object 2025ico
,
2025idt
RA, DEC:12:49:22.019, +26:37:50.74
(192.341747, 26.630762)
Redshift:
Type:
See object 2025idt
,
2025ihj
RA, DEC:19:28:47.373, +41:54:30.21
(292.197388, 41.908392)
Redshift:
Type:
See object 2025ihj
,
2025iic
RA, DEC:18:30:06.369, +28:19:28.70
(277.526536, 28.324639)
Redshift:0.09
Type:SN Ia
See object 2025iic
,
2025iif
RA, DEC:16:00:20.675, +28:20:00.16
(240.086147, 28.333378)
Redshift:
Type:
See object 2025iif
,
2025iil
RA, DEC:15:19:13.649, +06:07:48.25
(229.806869, 6.130069)
Redshift:
Type:
See object 2025iil
,
2025iit
RA, DEC:12:59:35.338, +15:02:54.48
(194.897243, 15.048466)
Redshift:
Type:
See object 2025iit
,
2025iiv
RA, DEC:11:27:19.332, +22:02:59.55
(171.830549, 22.049875)
Redshift:
Type:
See object 2025iiv
,
2025ijv
RA, DEC:17:17:37.944, +25:54:58.16
(259.408101, 25.916157)
Redshift:
Type:
See object 2025ijv
,
2025ikg
RA, DEC:15:13:01.518, +34:39:56.88
(228.256327, 34.665801)
Redshift:0.07177
Type:SN Ia
See object 2025ikg
,
2025imk
RA, DEC:14:14:27.374, +13:36:36.80
(213.614059, 13.610221)
Redshift:0.07857
Type:SN Ia
See object 2025imk
,
2025imm
RA, DEC:11:06:24.930, +45:30:45.28
(166.603873, 45.512578)
Redshift:0.064
Type:SN Ia-91bg-like
See object 2025imm
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 2026-214
Type: Object/s-Data/Analysis
Released: 2026-07-13 03:36:23
Photometric Follow-up of SN 2026sqf with BHTOM.space Global Telescope Network
J. Majumdar (U.Warsaw), L. Wyrzykowski (U.Warsaw/NCBJ/EASST.eu), P.J. Mikolajczyk (U.Wroclaw/NCBJ), P. Pessi (NCBJ), K…
Source Group: BHTOM
Keywords: Time-domain, Surveys, Transient, Supernova, Optical
Related Objects:
2026sqf
RA, DEC:10:38:47.961, +53:30:34.10
(159.699839, 53.509471)
Redshift:0.003312
Type:SN Ia-CSM
See object 2026sqf
We report on the optical photometric follow-up of SN 2026sqf conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-213
Type: Object/s-Data/Analysis
Released: 2026-07-12 18:46:41
Candidate emergent and fading 3 GHz radio sources at the positions of unclassified optical transients: a systematic TNS x VLASS search
Raul Abreu Dominguez (LambdAI Space)
Keywords: Time-domain, Surveys, Methods, TDE, AGN, Galaxy, Radio, Optical
Related Objects:
2020aboe
RA, DEC:00:22:32.315, +23:41:30.87
(5.634645, 23.691908)
Redshift:
Type:
See object 2020aboe
,
2020vdq
RA, DEC:10:08:53.440, +42:43:00.23
(152.222667, 42.716731)
Redshift:0.044
Type:TDE
See object 2020vdq
,
2020xmt
RA, DEC:09:07:14.728, +16:37:21.13
(136.811366, 16.622536)
Redshift:
Type:
See object 2020xmt
,
2021ahvo
RA, DEC:10:03:13.798, +28:39:44.53
(150.807493, 28.662368)
Redshift:
Type:
See object 2021ahvo
,
2020nbs
RA, DEC:21:14:22.540, -08:59:39.64
(318.593916, -8.994345)
Redshift:
Type:
See object 2020nbs
,
2018jir
RA, DEC:09:17:19.647, +11:37:42.59
(139.331864, 11.628497)
Redshift:
Type:
See object 2018jir
,
2021syi
RA, DEC:14:46:49.345, +15:46:19.28
(221.705603, 15.772023)
Redshift:
Type:
See object 2021syi
Related Notes:
2026-209
2026-2132026-07-06 19:24:04
Title: A delayed, transient radio flare and recurrent optical flaring in the previously quiescent galaxy LEDA 1691918 (AT 2020aboe)
Authors: Raul Abreu Dominguez (LambdAI Space)
We crossmatched all public TNS transients (about 187,000 in the VLASS footprint) with the CIRADA VLASS Quick Look epoch 1 and epoch 2 component catalogs, classifying each radio-coincident transient b…
AstroNote 2026-209
Type: Object/s-Data/Analysis
Released: 2026-07-06 19:24:04
A delayed, transient radio flare and recurrent optical flaring in the previously quiescent galaxy LEDA 1691918 (AT 2020aboe)
Raul Abreu Dominguez (LambdAI Space)
Keywords: Time-domain, Transient, TDE, AGN, Galaxy, Radio, Optical
Related Objects:
2020aboe [ZTF20actslnz]
RA, DEC:00:22:32.315, +23:41:30.87
(5.634645, 23.691908)
Redshift:
Type:
See object 2020aboe [ZTF20actslnz]
We report archival evidence for a repeating nuclear transient with a transient 3 GHz radio flare in LEDA 1691918, a massive early-type galaxy at z=0.0964 whose 2013 SDSS spectrum shows no AGN signatu…
AstroNote 2026-207
Type: Object/s-Data/Analysis
Released: 2026-07-03 15:48:28
DAO and UBC Southern Observatory photometric follow-up of selected transients 2026-IIII (May/June 2026)
S. Chan (University of British Columbia - UBC), A. C. Boley (UBC) & D. D. Balam (DAO/NRC)
Source Group: DAO_OTS
Keywords: Photometry
Related Objects:
2026nth
RA, DEC:16:30:28.740, +53:52:51.27
(247.619751, 53.880907)
Redshift:
Type:
See object 2026nth
,
2026nuj
RA, DEC:16:08:55.913, +32:41:33.93
(242.232970, 32.692759)
Redshift:
Type:
See object 2026nuj
,
2026nux
RA, DEC:11:39:30.373, +55:56:35.19
(174.876553, 55.943109)
Redshift:0.05
Type:SN Ia
See object 2026nux
,
2026nwx
RA, DEC:15:29:56.427, +61:16:02.58
(232.485111, 61.267382)
Redshift:
Type:
See object 2026nwx
,
2026qco
RA, DEC:16:25:43.207, +46:14:34.29
(246.430030, 46.242857)
Redshift:0.07
Type:SN Ia
See object 2026qco
,
2026qui
RA, DEC:15:59:37.046, +07:51:01.33
(239.904360, 7.850369)
Redshift:
Type:
See object 2026qui
,
2026mqo
RA, DEC:13:32:50.941, -27:03:10.45
(203.212256, -27.052903)
Redshift:0.038
Type:SN II
See object 2026mqo
,
2026mxl
RA, DEC:12:52:09.438, -21:51:40.34
(193.039325, -21.861206)
Redshift:0.023
Type:SN Ia-91bg-like
See object 2026mxl
,
2026nco
RA, DEC:16:44:58.201, -12:01:14.11
(251.242503, -12.020586)
Redshift:
Type:
See object 2026nco
,
2026nmo
RA, DEC:14:23:56.626, -58:37:46.74
(215.985940, -58.629650)
Redshift:
Type:
See object 2026nmo
,
2026noc
RA, DEC:11:44:33.115, -68:48:32.94
(176.137979, -68.809150)
Redshift:
Type:Nova
See object 2026noc
,
2026ofr
RA, DEC:13:21:52.498, -36:38:07.54
(200.468742, -36.635427)
Redshift:0.003
Type:Nova
See object 2026ofr
,
2026ojj
RA, DEC:14:12:21.219, -29:05:56.81
(213.088410, -29.099115)
Redshift:
Type:
See object 2026ojj
,
2026qad
RA, DEC:16:19:04.997, -61:17:59.19
(244.770821, -61.299775)
Redshift:0.0128
Type:SN Ibn
See object 2026qad
,
2026puh
RA, DEC:19:38:38.955, -39:39:49.74
(294.662314, -39.663815)
Redshift:0.032
Type:SN II
See object 2026puh
,
2026pla
RA, DEC:13:32:00.031, -27:01:36.22
(203.000127, -27.026729)
Redshift:
Type:
See object 2026pla
,
2026qdr
RA, DEC:16:50:10.000, -18:27:46.30
(252.541667, -18.462861)
Redshift:
Type:
See object 2026qdr
,
2026qdn
RA, DEC:12:03:34.869, -06:44:37.39
(180.895285, -6.743720)
Redshift:
Type:
See object 2026qdn
,
2026qbu
RA, DEC:14:03:04.631, +08:56:52.98
(210.769297, 8.948051)
Redshift:0.02
Type:SN Ia
See object 2026qbu
,
2026qqg
RA, DEC:11:06:55.391, -04:07:04.72
(166.730797, -4.117978)
Redshift:
Type:
See object 2026qqg
We present (SDSS) g&r filter (DAO) and (Kron-Cousins - B, V & R) photometric follow up observations of selected optical transients obtained using the 1.82-m Plaskett telescope of the (Dominion Astrop…
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 2026-200
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:17:48:25.737, +32:00:08.98
(267.107236, 32.002494)
Redshift:
Type:
See object 2026paj [GOTO26fvy]
,
2026ozw [ZTF26abackhg]
RA, DEC:18:26:16.249, +32:18:13.14
(276.567703, 32.303651)
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:18:15:31.975, +33:07:15.06
(273.883231, 33.120850)
Redshift:0.073
Type:SN Ia
See object 2026ogd [ZTF26aazmplv]
,
2026osc [ZTF26aazmngk]
RA, DEC:21:42:45.015, +13:53:40.77
(325.687564, 13.894657)
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 2026-198
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 2026-196
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 2026-192
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 2026-189
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 2026-185
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 2026-176
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 2026-174
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 2026-158
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 2026-155
Type: Object/s-Data/Analysis
Released: 2026-05-27 18:45:49
UBC Southern Observatory photometric follow-up of probable galactic nova 2026nmo
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:
2026nmo
RA, DEC:14:23:56.626, -58:37:46.74
(215.985940, -58.629650)
Redshift:
Type:
See object 2026nmo
We present Johnson-Cousins filter differential photometry and astrometry of the probable galactic nova 2026nmo obtained using the University of British Columbia (Thunderbird) Southern Observatory 0.5…
AstroNote 2026-153
Type: Object/s-Data/Analysis
Released: 2026-05-26 03:38:14
DAO and UBC Southern Observatory photometric follow-up of probable galactic nova 2026noc
D. D. Balam (DAO/NRC), A. C. Boley (University of British Columbia - UBC), B. Carchrae (UBC)and S. Chan (UBC) (UBC)
Source Group: DAO_OTS
Keywords: Photometry
Related Objects:
2026noc
RA, DEC:11:44:33.115, -68:48:32.94
(176.137979, -68.809150)
Redshift:
Type:Nova
See object 2026noc
We present Johnson-Cousins filter differential photometry of the probable galactic nova 2026noc obtained using the University of British Columbia (Thunderbird) Southern Observatory 0.5-m + CCD teles…
AstroNote 2026-149
Type: Object/s-Data/Analysis
Released: 2026-05-22 12:51:34
The rapidly evolving transient AT2026naq in IC 0827 at 100 Mpc
S. Srivastav (Oxford), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, C. R. Angus, M. Nicholl, J. Weston (Queen&#…
Source Group: ATLAS
Keywords: Transient, Supernova
Related Objects:
2026naq [ZTF26aaxgdqa]
RA, DEC:12:51:56.463, +16:16:53.32
(192.985263, 16.281479)
Redshift:0.021
Type:SN IIb
See object 2026naq [ZTF26aaxgdqa]
We report rapid fading in the light curve of AT2026naq/ZTF26aaxgdqa through combined ZTF and ATLAS survey data. The transient shows a fade of 0.5 mag/day from a peak absolute g-band magnitude of -15…
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:22:28:27.238, +30:17:54.46
(337.113490, 30.298462)
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 2026-135
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:0.083
Type:SN Ia
See object 2026iea
,
2026kyu
RA, DEC:18:12:54.411, +11:22:56.95
(273.226713, 11.382486)
Redshift:0.0856
Type:SN Ia
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:11:48:30.606, +50:02:04.84
(177.127523, 50.034678)
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:0.028
Type:SN Ia
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, +01:53:48.72
(238.773825, 1.896867)
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 2026-130
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 2026-122
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 2026-118
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:0.083
Type:SN Ia
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:17:09:50.814, +26:09:14.31
(257.461727, 26.153974)
Redshift:0.046
Type:SN Ia
See object 2026kob
,
2026kra
RA, DEC:13:37:50.614, +28:28:21.60
(204.460893, 28.472666)
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 2026-106
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 2026-102
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 2026-99
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:0.083
Type:SN Ia
See object 2026iea
,
2026iei
RA, DEC:11:27:42.586, +54:15:47.15
(171.927442, 54.263097)
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:14:49:19.397, +33:17:40.67
(222.330820, 33.294631)
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:12:35:13.942, +41:45:25.29
(188.808093, 41.757024)
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:14:24:08.138, +22:56:14.79
(216.033906, 22.937442)
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 2026-93
Type: Object/s-Data/Analysis
Released: 2026-04-03 00:01:27
Spectroscopic Observations of AT 2026hir/ZTF26aapviim, the counterpart to EP260324A
Robert Stein (UMD/JSI/NASA GSFC), Kaustav Das (Caltech), Christoffer Fremling (Caltech), Tomas Ahumada (NOIRLab), Akash…
Source Group: ZTF
Keywords: Time-domain, Transient, TDE, X-rays
Related Objects:
2026hir [ZTF26aapviim]
RA, DEC:08:44:12.377, +82:01:11.36
(131.051569, 82.019822)
Redshift:0.088
Type:TDE
See object 2026hir [ZTF26aapviim]
Related Notes:
2026-87
2026-932026-03-27 01:13:02
Title: Identification of the redshift of EP Transient EP260324a
Authors: Jiazheng Zhu (USTC), Ning Jiang (USTC), Linna Xu (USTC), Y…
Source Group: USTC-TDE
We report the spectroscopic observations of AT 2026hir/ZTF26aapviim, the counterpart to EP260324A. The source has a blue continuum, and possibly exhibits an additional broad feature that could be He …
AstroNote 2026-90
Type: Object/s-Data/Analysis
Released: 2026-03-30 00:08:29
POISE Observations of the Rapidly Rising 2026hkg
Willem Hoogendam (Hawaii), Nidia Morrell (Carnegie), Chris Burns (Carnegie), Chris Ashall (Hawaii), Eric Hsiao (FSU), C…
Source Group: POISE
Related Objects:
2026hkg [ATLAS26djy]
RA, DEC:09:03:36.117, -67:58:13.34
(135.900486, -67.970372)
Redshift:0.004733
Type:SN II
See object 2026hkg [ATLAS26djy]
The POISE Collaboration reports a ~1 mag per day rise for the flash-ionized SN II 2026hkg. We report intranight rises of 0.4mags over 7 hours on UT 2026-03-28 and 0.1 mags over 2 hours on UT 2026-03-…
AstroNote 2026-86
Type: Object/s-Data/Analysis
Released: 2026-03-26 14:07:37
Photometric observations of AT2026cex with BHTOM.space Global Telescope Network
Joysankar Majumdar (U.Warsaw, PL), L. Wyrzykowski (U.Warsaw/NCBJ, PL/EASST.eu), P.J. Mikolajczyk (U.Wroclaw/NCBJ, PL), …
Source Group: BHTOM
Keywords: Time-domain, Surveys, Transient, Optical
Related Objects:
2026cex [ZTF26aaedxli]
RA, DEC:07:30:08.510, +24:30:05.09
(112.535458, 24.501414)
Redshift:
Type:
See object 2026cex [ZTF26aaedxli]
We report on the optical multiband photometric follow-up of AT2026cex conducted with the BHTOM.space Global Telescope Network.
AstroNote 2026-80
Type: Object/s-Data/Analysis
Released: 2026-03-20 12:55:23
Photometric observations of LSST targets with BHTOM.space Global Telescope Network
P. Pessi (NCBJ), L. Wyrzykowski (NCBJ/OAUW), M.Siwak (UKEN), K.Siennicki (U.Warsaw), S. Swiercz (U.Warsaw), M.Dominik (…
Related Objects:
2026ejx
RA, DEC:10:01:07.335, +02:44:47.74
(150.280563, 2.746594)
Redshift:
Type:
See object 2026ejx
,
2026eqf [LSST-AP-DO-313994139532263447]
RA, DEC:03:33:00.327, -27:51:39.74
(53.251362, -27.861039)
Redshift:0.147
Type:SN IIn
See object 2026eqf [LSST-AP-DO-313994139532263447]
,
2026ekf [170032917163016282]
RA, DEC:12:30:49.857, +08:16:26.15
(187.707737, 8.273932)
Redshift:0.15
Type:SN Ia
See object 2026ekf [170032917163016282]
We report follow up photometry of the transient AT 2026ejx (LSST object 170046089928376424), the SN 2026eqf (LSST object 313994139532263447) and the SN 2026ekf (LSST object 170032917163016282)
AstroNote 2026-76
Type: Object/s-Data/Analysis
Released: 2026-03-18 15:43:01
SN 2026fvx: Kinder Follow-up Observations of a Rapidly Brightening Young Type Ia Supernova
Y.-H. Lee, M.-H. Lee, T.-W. Chen, Y.-C. Pan, H.-Y. Hsiao, A. Dutta, A. Aryan (all NCU), S. Yang (HNAS), C.-Y. Cheng, H…
Source Group: Kinder
Keywords: 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:
2021-92
2026-762021-03-20 16:22:47
Title: Kinder follow-up observations of AT 2021gca (ZTF21aapkbav)
Authors: T.-W. Chen, S. Yang (Stockholm), Y.-C. Pan, C.-C. Ngeow, H…
Source Group: Kinder
,
2026-75
2026-762026-03-18 11:43:59
Title: AT2026fvx: discovery of a young SN candidate in NGC 4205 (17.5 Mpc)
Authors: R. Konno, E. A. Zimmerman, E. O. Ofek, A. Horowicz, A. Gal-…
Source Group: LAST
We observed the nearby young Type Ia supernova SN 2026fvx in NGC 4205 (Konno et al., AstroNote 2026-75) with the 40-cm SLT at Lulin Observatory. We measured magnitudes of g = 17.99 ± 0.06, r = 17.97 …
AstroNote 2026-71
Type: Object/s-Data/Analysis
Released: 2026-03-16 09:27:44
AT 2026fns (ATLAS26cyf): Further Kinder follow-up observations reveal no continuation of the rapid decay
C.-H. Lai, A. Aryan, Y.-H. Lee, C.-S. Lin, T.-W. Chen, A. Sankar.K, M.-H. Lee, Y.-C. Pan, W.-J. Hou, H.-Y. Hsiao, H.-C…
Source Group: Kinder
Related Objects:
2026fns [ATLAS26cyf]
RA, DEC:12:31:05.738, -31:40:57.85
(187.773908, -31.682737)
Redshift:0.03
Type:SN II
See object 2026fns [ATLAS26cyf]
Related Notes:
2026-70
2026-712026-03-14 19:20:40
Title: ATLAS26cyf (AT2026fns): discovery of a fast fading transient in a faint blue host
Authors: K. W. Smith, L. Eastman, S.J. Smartt (Oxford/QUB), D. R. Yo…
Source Group: ATLAS
We observed the previously reported (AstroNote 2026-70) transient ATLAS26cyf (AT 2026fns) with 1m LOT at the Lulin Observatory. The reported transient has magnitudes of g = 19.17 +/- 0.04 and r = 18…
AstroNote 2026-65
Type: Object/s-Data/Analysis
Released: 2026-03-11 19:39:24
Photometry of a Red Fast Optical Transient
K-Ryan Hinds (Caltech), Xander J. Hall (CMU), Daniel A. Perley (LJMU), Anna Y. Q. Ho (Cornell), Jacob Wise (LJMU), Rah…
Source Group: ZTF
Related Objects:
2026fgk [ZTF26aakjzdt]
RA, DEC:14:37:16.143, +71:50:30.32
(219.317261, 71.841754)
Redshift:0.153
Type:Afterglow
See object 2026fgk [ZTF26aakjzdt]
We report optical photometry of a rapidly rising (>6 mag/d) and fading (0.9 mag/d) red optical transient coincident with a host with LS photoz = 0.11 +/-0.02, implying a luminous peak magnitude of ~-…
AstroNote 2026-60
Type: Object/s-Data/Analysis
Released: 2026-03-07 20:04:54
DAO photometric follow-up of selected transients - 2026A
D. D. Balam (Dominion Astrophysical Observatory, National Research Council of Canada)
Source Group: DAO_OTS
Keywords: Photometry
Related Objects:
2026cbp
RA, DEC:05:49:25.252, +46:40:50.68
(87.355218, 46.680743)
Redshift:
Type:
See object 2026cbp
,
2026cbr
RA, DEC:04:48:57.952, +05:58:59.53
(72.241465, 5.983203)
Redshift:
Type:
See object 2026cbr
,
2026cei
RA, DEC:14:33:32.963, +53:26:22.42
(218.387345, 53.439560)
Redshift:
Type:
See object 2026cei
,
2026cgw
RA, DEC:15:27:13.339, +36:26:24.50
(231.805579, 36.440140)
Redshift:
Type:
See object 2026cgw
,
2026emv
RA, DEC:14:39:40.288, +43:05:16.27
(219.917867, 43.087852)
Redshift:
Type:
See object 2026emv
,
2026emx
RA, DEC:05:09:25.708, +56:11:13.74
(77.357118, 56.187150)
Redshift:
Type:
See object 2026emx
,
2026enl
RA, DEC:08:33:19.205, +29:50:48.94
(128.330023, 29.846928)
Redshift:0.049004
Type:SN II
See object 2026enl
,
2026eot
RA, DEC:14:16:24.198, +38:10:44.84
(214.100825, 38.179121)
Redshift:
Type:
See object 2026eot
,
2026eou
RA, DEC:12:54:48.680, +15:57:25.83
(193.702833, 15.957175)
Redshift:
Type:
See object 2026eou
,
2026eqh
RA, DEC:13:33:55.305, +41:25:56.91
(203.480437, 41.432476)
Redshift:
Type:
See object 2026eqh
,
2026eqj
RA, DEC:12:49:51.889, +34:08:16.92
(192.466206, 34.138034)
Redshift:
Type:
See object 2026eqj
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 2026-53
Type: Object/s-Data/Analysis
Released: 2026-02-28 23:46:10
Late-Time Detection of the Ca-rich SN Ia-pec 2024kce in Early LSST Alerts
Kaustav K. Das, Mansi Kasliwal, Theophile Jegou du Laz, Thomas Culino, Wynn Jacobson-Galán, Christoffer Fremling, Sam R…
Source Group: ZTF
Keywords: Time-domain, Catalogs, Surveys, Techniques, Transient, Supernova
Related Objects:
2024kce [ZTF24aaqaroi]
RA, DEC:12:29:49.560, +08:12:48.49
(187.456500, 8.213469)
Redshift:0.003
Type:SN Ia-pec
See object 2024kce [ZTF24aaqaroi]
Related Notes:
2024-340
2026-532024-11-16 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
We report the late-time detection of the Ca-rich Ia-pec SN 2024kce in early LSST alerts, approximately 640 days after explosion.. The source was identified through a dedicated filter operating within…
AstroNote 2026-52
Type: Object/s-Data/Analysis
Released: 2026-02-28 04:59:22
AT 2026epw: Discovery of a possible nova from Vera Rubin Observatory
Anirudh Salgundi (UNC), Igor Andreoni (UNC), Akash Anumarlapudi (UNC), James Freeburn (UNC), Theophile du Laz (Caltech)…
Source Group: ATALab
Related Objects:
2026epw
RA, DEC:12:21:57.816, +08:39:36.01
(185.490899, 8.660004)
Redshift:
Type:
See object 2026epw
We report the discovery of a possible classical nova identified within the Vera C. Rubin Observatory commissioning alert stream. The transient (AT 2026epw) is located at a projected offset of 54.2'' …
AstroNote 2026-51
Type: Object/s-Data/Analysis
Released: 2026-02-26 08:57:05
Spectroscopic classification of a nearby slowly rising, interacting transient consistent with an LBV or pre-supernova outburs
S. J. Brennan (MPE), W. Jacobson-Galán (Caltech) on behalf of ZTF collaboration
Related Objects:
2025ajmz [ZTF25acjbjpa]
RA, DEC:11:56:30.186, +55:06:54.26
(179.125774, 55.115071)
Redshift:0.0037100000772625
Type:SN IIn
See object 2025ajmz [ZTF25acjbjpa]
We report spectroscopic observations of the slowly rising transient SN 2025ajmz in NGC 3982, consistent with an LBV eruption or pre-supernova outburst.
AstroNote 2026-46
Type: Object/s-Data/Analysis
Released: 2026-02-25 09:36:19
AT 2025agpz / ATLAS25pny / LSST-P-DO-313761043604045880: SLSN candidate in the first Rubin / LSST alerts
I. Pérez-Fournon (IAC and ULL), F. Poidevin (IAC and ULL), D. Cano-Morales, A.E. Hernández-Díaz, I. Correa-Plasencia, E…
Source Group: SGLF
Keywords: Time-domain, Transient, Supernova
Related Objects:
2025agpz [ATLAS25pny]
RA, DEC:04:07:51.557, -48:42:48.40
(61.964820, -48.713443)
Redshift:
Type:
See object 2025agpz [ATLAS25pny]
We report on a candidate SLSN, first discovered by ATLAS (ATLAS25pny, AT 2025agpz) and with a well defined light curve (object LSST-P-DO-313761043604045880) in the first Rubin alerts.
AstroNote 2026-45
Type: Object/s-Data/Analysis
Released: 2026-02-25 09:31:39
Spectroscopic Observations of AT 2025agpz, a Long-Rising Hydrogen-Rich Transient in Rubin-LSST Commissioning Data
C. R. Angus (QUB), H. Stevance (Oxford), M. Nicholl (QUB), K. W. Smith, S. Smartt (Oxford/QUB), D. R. Young, M. Fulton,…
Source Group: OxQUB
Related Objects:
2025agpz [ATLAS25pny]
RA, DEC:04:07:51.557, -48:42:48.40
(61.964820, -48.713443)
Redshift:
Type:
See object 2025agpz [ATLAS25pny]
We report spectroscopic observations of AT 2025agpz (ATLAS25pny), a luminous, long-rising hydrogen-rich transient discovered by ATLAS and independently detected in Rubin-LSST Deep Drilling Field comm…

Most Viewed

AstroNote 2022-145
Released: 2022-07-16
Views Count: 6191
Discovery of Possible Transient in JWST NIRCam Images of SDSS J141930.11+525159.3
Mike Engesser (STScI), Gabriel Brammer (University of Copenhagen), Katriona Gould (University of Co…
AstroNote 2023-136
Released: 2023-05-23
Views Count: 5770
Early multiband light curve of SN 2023ixf
Juan-Luis González-Carballo, R. G. Farfán, F. Limón, J. L. Salto, C. Botana, A. Mantero, G. Locatel…
AstroNote 2023-119
Released: 2023-05-19
Views Count: 5163
LT Classification of SN 2023ixf as a Type II Supernova in M101
Daniel A. Perley (LJMU), Avishay Gal-Yam (Weizmann), Ido Irani (Weizmann), Erez Zimmerman (Weizmann)
AstroNote 2020-100
Released: 2020-05-07
Views Count: 2713
Classification of SN 2020jfo (ZTF20aaynrrh) as a young Type II supernova
Daniel Perley (LJMU), Cristina Barbarino (Stockholm), Jesper Sollerman (Stockholm), Tassilo Schweye…
AstroNote 2023-265
Released: 2023-10-11
Views Count: 2406
SN 2023tyk: discovery to spectroscopic classification performed fully automatically
Nabeel Rehemtulla (NU), Adam Miller (NU), Christoffer Fremling (Caltech), D. A. Perley (LJMU), Yu-J…
AstroNote 2020-89
Released: 2020-04-22
Views Count: 2401
ATLAS20ktt (AT2020hvp): discovery of a candidate supernova in NGC 6118 (27 Mpc)
M. Fulton, K. W. Smith, S. Srivastav, O. McBrien, S. J. Smartt, J. Gillanders, P. Clark, D. O'…
AstroNote 2023-130
Released: 2023-05-22
Views Count: 2399
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…
AstroNote 2019-163
Released: 2019-12-31
Views Count: 2225
ePESSTO+ re-classification of AT2019xis as a light echo of SN 1987A in the LMC.
S. Taubenberger (MPA), D. Malesani (DTU Space), G. Terreran (Northwestern), S. J. Smartt (QUB), A. …
AstroNote 2020-126
Released: 2020-06-25
Views Count: 2157
ATLAS20qoq (AT2020nlb): discovery of a candidate SN in MESSIER 85 (17 Mpc)
A. Townsend (Queen's University Belfast / University of Manchester), K. W. Smith, S. Srivastav…
AstroNote 2020-70
Released: 2020-03-30
Views Count: 2026
Fast Radio Bursts (FRBs) now reported to and distributed via the TNS
O. Yaron, E. Ofek, A. Gal-Yam, A. Sass (Weizmann)

Recent Released Tools