Showing results 1 to 50 out of 2,372
AstroNote 2026-249
Type: Object/s-Discovery/Classification
Released: 2026-08-14 10:33:15
SLSN and TDE candidates from NEEDLE on Lasair
X. Sheng, M. Nicholl, K. W. Smith, C. R. Angus, M. Fulton, T. Moore, J. Weston, D. R. Young, D. Magill, A. J. Smith (QU…
Source Group: OxQUB
Keywords: Time-domain, Transient, Supernova, TDE
Related Objects:
2026xcs [ZTF26ablsebw]
RA, DEC:00:20:19.018, -09:58:13.97
(5.079243, -9.970548)
Redshift:
Type:
See object 2026xcs [ZTF26ablsebw]
,
2026wkd [ZTF26abhmzzw]
RA, DEC:02:09:48.759, +28:17:55.95
(32.453162, 28.298876)
Redshift:
Type:
See object 2026wkd [ZTF26abhmzzw]
,
2026xbx [ZTF26ablevyf]
RA, DEC:16:27:51.335, +00:28:36.24
(246.963895, 0.476734)
Redshift:
Type:
See object 2026xbx [ZTF26ablevyf]
,
2026xco [ZTF26abidbmw]
RA, DEC:00:07:27.481, -17:35:00.47
(1.864503, -17.583463)
Redshift:
Type:
See object 2026xco [ZTF26abidbmw]
We report 3 SLSN and 1 TDE candidates from the ZTF public alert stream, identified by the NEEDLE classifier running on the Lasair alert broker. We encourage spectroscopic classification of these even…
AstroNote 2026-248
Type: Object/s-Discovery/Classification
Released: 2026-08-14 10:04:46
ATLAS26jyd (AT2026ywa): discovery of a candidate SN in ESO186-G021 (77 Mpc)
J. Tweddle (Oxford), K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, T. Moore, J. Weston, X. Sheng, C. R. Angus, D. …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026ywa [ATLAS26jyd]
RA, DEC:20:15:10.878, -52:43:17.22
(303.795325, -52.721450)
Redshift:
Type:
See object 2026ywa [ATLAS26jyd]
Here we report the ATLAS discovery of the transient ATLAS26jyd (AT2026ywa) in galaxy ESO186-G021 at magnitude m_o = 19.22 +/- 0.15. At a distance of 76.65 Mpc, the transient was discovered on MJD = …
AstroNote 2026-247
Type: Object/s-Discovery/Classification
Released: 2026-08-13 09:03:38
ZTF Classification of AT 2026yqj/ZTF26abgtqqr as a TDE-He and AT 2026rey/ZTF26aaximsq as a possible TDE
R. Chornock (UC Berkeley), N. LeBaron (UC Berkeley), I. Sfaradi (UC Berkeley), M. Velasquez (UC Berkeley), E. Hammerste…
Source Group: ZTF
Keywords: Spectroscopy, Transient, TDE
Related Objects:
2026yqj [ZTF26abgtqqr]
RA, DEC:17:39:39.147, +56:22:44.12
(264.913113, 56.378923)
Redshift:0.1565
Type:TDE-He
See object 2026yqj [ZTF26abgtqqr]
,
2026rey [ZTF26aaximsq]
RA, DEC:18:35:37.027, +24:54:23.34
(278.904279, 24.906483)
Redshift:0.087
Type:TDE-featureless
See object 2026rey [ZTF26aaximsq]
We spectroscopically classify the optical transient AT2026yqj/ZTF26abgtqqr as a TDE-He at redshift z=0.1565. In addition, we classify the long-rising nuclear transient AT 2026rey/ZTF26aaximsq as a po…
AstroNote 2026-246
Type: Object/s-Discovery/Classification
Released: 2026-08-12 15:33:07
Kinder follow-up observations of AT 2026yos (ATLAS26jvy)
Y.-H. Lee, A. Aryan, T.-W. Chen, C.-S. Lin (all NCU), S. J. Smartt, J. Gillanders (both Oxford), S. J. Brennan (MPE), A…
Source Group: Kinder
Keywords: Transient
Related Objects:
2026yos [ATLAS26jvy]
RA, DEC:17:30:32.138, +16:18:42.09
(262.633908, 16.311692)
Redshift:
Type:NA/Unknown
See object 2026yos [ATLAS26jvy]
Related Notes:
2026-245
2026-2462026-08-12 13:41:34
Title: ATLAS26jvy (AT2026yos): discovery of a fast-fading transient 37 kpc offset from NGC6379 (87 Mpc)
Authors: J. H. Gillanders (Oxford), S. J. Smartt, K. W. Smith (Oxfor…
Source Group: ATLAS
We report multiband photometric follow-up observations of AT 2026yos (ATLAS26jvy), a rapidly fading transient discovered by ATLAS (Gillanders et al., AstroNote 2026-245). We observed the transient wi…
AstroNote 2026-245
Type: Object/s-Discovery/Classification
Released: 2026-08-12 14:15:37
ATLAS26jvy (AT2026yos): discovery of a fast-fading transient 37 kpc offset from NGC6379 (87 Mpc)
J. H. Gillanders (Oxford), S. J. Smartt, K. W. Smith (Oxford/QUB), S. Srivastav (Oxford), D. R. Young, M. Nicholl, T. …
Source Group: ATLAS
Related Objects:
2026yos [ATLAS26jvy]
RA, DEC:17:30:32.138, +16:18:42.09
(262.633908, 16.311692)
Redshift:
Type:NA/Unknown
See object 2026yos [ATLAS26jvy]
Here we report the ATLAS discovery of the transient ATLAS26jvy (AT2026yos) in galaxy NGC6379 at AB magnitude, m_w = 18.53 +/- 0.04. At a distance of 87 Mpc, the transient was discovered on MJD 61262…
AstroNote 2026-244
Type: Object/s-Data/Analysis
Released: 2026-08-11 02:10:41
DAO photometric follow-up of selected transients - 2026 August
D. D. Balam (Dominion Astrophysical Observatory, National Research Council of Canada), S. Chan (University of British C…
Source Group: DAO_OTS
Keywords: Photometry
Related Objects:
2026xcx
RA, DEC:21:43:46.444, +20:19:57.48
(325.943519, 20.332634)
Redshift:
Type:
See object 2026xcx
,
2026xpx
RA, DEC:16:42:36.347, +57:19:39.63
(250.651445, 57.327675)
Redshift:
Type:
See object 2026xpx
,
2026xqb
RA, DEC:23:42:32.703, +24:48:57.93
(355.636261, 24.816092)
Redshift:
Type:
See object 2026xqb
,
2026xqg
RA, DEC:23:46:18.275, +27:53:16.74
(356.576147, 27.887982)
Redshift:
Type:
See object 2026xqg
,
2026yah
RA, DEC:18:39:35.899, +47:49:07.33
(279.899578, 47.818702)
Redshift:
Type:
See object 2026yah
,
2026yai
RA, DEC:19:21:21.404, +50:37:12.50
(290.339183, 50.620140)
Redshift:
Type:
See object 2026yai
,
2026yft
RA, DEC:17:57:17.885, +25:16:17.44
(269.324520, 25.271510)
Redshift:
Type:
See object 2026yft
,
2026ygs
RA, DEC:23:07:14.067, +11:40:40.01
(346.808612, 11.677779)
Redshift:
Type:
See object 2026ygs
,
2026yjk
RA, DEC:21:10:17.563, +09:03:00.92
(317.573181, 9.050256)
Redshift:
Type:
See object 2026yjk
,
2026yjz
RA, DEC:20:06:27.207, +18:35:00.76
(301.613363, 18.583544)
Redshift:
Type:
See object 2026yjz
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 2026-243
Type: Object/s-Discovery/Classification
Released: 2026-08-10 06:40:49
Spectroscopic Observations of Shock-Powered Type II Supernovae Detected by Rubin/LSST
Wynn Jacobson-Galan, K-Ryan Hinds, Sam Rose, Kaustav K. Das, Mansi Kasliwal, Theophile Jegou du Laz, Thomas Culino, Chr…
Source Group: ZTF
Related Objects:
2025vgt [ZTF25ablihfx]
RA, DEC:20:41:14.563, -25:21:12.72
(310.310678, -25.353533)
Redshift:0.019547
Type:SN II
See object 2025vgt [ZTF25ablihfx]
,
2023swf [ZTF23aberpzw]
RA, DEC:21:05:58.530, -14:50:30.34
(316.493875, -14.841761)
Redshift:0.024
Type:SN II
See object 2023swf [ZTF23aberpzw]
,
2020jfv [ZTF20abgbuly]
RA, DEC:23:06:35.750, +00:36:43.60
(346.648958, 0.612111)
Redshift:0.01709
Type:SN IIb
See object 2020jfv [ZTF20abgbuly]
,
2020izc [ZTF20ablqacl]
RA, DEC:00:05:02.510, -07:06:03.02
(1.260458, -7.100839)
Redshift:0.012699
Type:SN II
See object 2020izc [ZTF20ablqacl]
,
2017hcc [ATLAS17lsn]
RA, DEC:00:03:50.590, -11:28:28.60
(0.960792, -11.474611)
Redshift:0.0173
Type:SN IIn
See object 2017hcc [ATLAS17lsn]
We report spectroscopic observations with Keck/DEIMOS of old (~1-9 years post-explosion) type II supernovae detected by the Rubin/LSST, some of which are powered by on-going CSM interaction.
AstroNote 2026-242
Type: Object/s-Discovery/Classification
Released: 2026-08-08 19:04:08
ATLAS26jsq (AT2026yid): discovery of a candidate SN in ESO 234- G 013 (73 Mpc)
K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, T. Moore, J. Weston, X. Sheng, C. R. Angus, D. Magill, A. J. Smith, …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026yid [ATLAS26jsq]
RA, DEC:20:22:32.434, -50:45:14.36
(305.635141, -50.753990)
Redshift:0.01596
Type:SN Ia
See object 2026yid [ATLAS26jsq]
Here we report the ATLAS discovery of the transient ATLAS26jsq (AT2026yid) in galaxy ESO 234- G 013 at magnitude m_o = 17.56 +/- 0.12. At a distance of 73 Mpc (redshift independent, from NED), the tr…
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 2026-240
Type: Object/s-Discovery/Classification
Released: 2026-08-07 15:17:50
Reclassification of SN 2026sqf, the nearest Type Ia-CSM to-date
Nabeel Rehemtulla (Northwestern), Wynn Jacobson-Galán (Caltech), Lindsey Kwok (Northwestern), Adam A. Miller (Northwest…
Source Group: ZTF
Keywords: Transient, Supernova, Optical
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:
2026-230
2026-2402026-07-23 18:55:12
Title: SN 2026sqf new classification attempt with photometric and SED follow-up from the RAPAS ProAm network
Authors: Thierry Midavaine (I73, Club Eclipse, RC500), Christian Bui…
Source Group: RAPAS
We reclassify SN 2026sqf as a Type Ia-CSM SN, affirming the original proposal by Midavaine et al. (AstroNote 2026-230). Our NOT/ALFOSC spectra reveal features characteristic of Type Ia SNe (Fe III & …
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:01:28:20.623, +40:13:26.65
(22.085929, 40.224071)
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:0.058
Type:SN Ia
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 2026-236
Type: Object/s-Discovery/Classification
Released: 2026-08-03 23:41:47
Precursor Watch: Transformation of Precursor Candidate AT2026sfn into Type IIn Supernova
Wynn Jacobson-Galán, K-Ryan Hinds, Sam Rose, Kaustav K. Das, Mansi Kasliwal, Theophile Jegou du Laz, Thomas Culino, Chr…
Source Group: ZTF
Related Objects:
2026sfn [ZTF26abgbpyv]
RA, DEC:21:28:47.590, +20:31:03.21
(322.198290, 20.517559)
Redshift:0.0177
Type:SN IIn
See object 2026sfn [ZTF26abgbpyv]
We report the recent explosion of precursor candidate AT2026sfn as a Type IIn supernova, confirming the prediction made in the previous “Precursor Watch” Astronote 2026-217.
AstroNote 2026-235
Type: Object/s-Discovery/Classification
Released: 2026-08-02 19:19:55
ATLAS26jiy (AT2026wpd): discovery of a candidate SN in CGCG 537-004 (100 Mpc)
K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, T. Moore, J. Weston, X. Sheng, C. R. Angus, D. Magill, A. J. Smith, …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026wpd [ATLAS26jiy]
RA, DEC:01:28:20.623, +40:13:26.65
(22.085929, 40.224071)
Redshift:0.025
Type:SN Ibn/Icn
See object 2026wpd [ATLAS26jiy]
Here we report the ATLAS discovery of the transient ATLAS26jiy (AT2026wpd) in galaxy CGCG 537-004 at magnitude m_o = 18.26 +/- 0.16. At a distance of 100 Mpc, the transient was discovered on MJD = 61…
AstroNote 2026-234
Type: Object/s-Discovery/Classification
Released: 2026-08-02 19:19:32
ATLAS26jja (AT2026wsy): discovery of a candidate SN in IC 4682 (45 Mpc)
K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, T. Moore, J. Weston, X. Sheng, C. R. Angus, D. Magill, A. J. Smith, …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026wsy [ATLAS26jja]
RA, DEC:18:16:25.631, -71:35:10.14
(274.106798, -71.586150)
Redshift:0.01215
Type:SN II
See object 2026wsy [ATLAS26jja]
Here we report the ATLAS discovery of the transient ATLAS26jja (AT2026wsy) in galaxy IC 4682 at magnitude m_o = 18.67 +/- 0.17. At a distance of 45 Mpc (redshift independent, from NED), the transient…
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 2026-232
Type: Object/s-Discovery/Classification
Released: 2026-07-30 17:52:52
ZTF discovery of a fast and red transient AT2026wki/ZTF26abkoycd
James Freeburn, Anirudh Salgundi, Igor Andreoni (UNC), Thomas Culino (Caltech), Sushant Sharma Chaudhary, Michael W. Co…
Source Group: ZTF
Keywords: Transient
Related Objects:
2026wki [ZTF26abkoycd]
RA, DEC:19:41:08.176, +60:49:17.78
(295.284065, 60.821605)
Redshift:
Type:
See object 2026wki [ZTF26abkoycd]
We report observations of the red and fast fading transient AT2026wki/ZTF26abkoycd, identified in the ZTF alert stream. The transient faded by ~1.1 mag/day in g-band and its color is red (g-r~0.2 mag…
AstroNote 2026-231
Type: Object/s-Discovery/Classification
Released: 2026-07-29 10:08:42
Classification of the transient 2026plb/ZTF26abbwmoo as a SN type IIn
Amalija Rafaj Škriljevečki (Graz University of Technology, University of Graz), Eduardo Concepcion (Center for Astrophy…
Keywords: Transient, Supernova
Related Objects:
2026plb [ZTF26abbwmoo]
RA, DEC:20:56:47.260, -18:31:04.49
(314.196917, -18.517914)
Redshift:0.03
Type:SN IIn
See object 2026plb [ZTF26abbwmoo]
We report the classification of the bright nuclear transient 2026plb/ZTF26abbwmoo as a SN type IIn.
AstroNote 2026-230
Type: Object/s-Discovery/Classification
Released: 2026-07-23 18:55:12
SN 2026sqf new classification attempt with photometric and SED follow-up from the RAPAS ProAm network
Thierry Midavaine (I73, Club Eclipse, RC500), Christian Buil (Antibes, N254), Jean-Louis Dumont (R73, Tauxigny, SC400),…
Source Group: RAPAS
Keywords: Time-domain, Instrumentation, Photometry, Spectroscopy, Transient, Supernova, Optical
We report on the optical photometric follow-up of SN 2026sqf with RAPAS, a ProAm network using telescopes equipped with a set of filters RAPAS G, RAPAS Gbp and RAPAS Grp meeting Gaia G, Gbp and Grp p…
AstroNote 2026-229
Type: Object/s-Discovery/Classification
Released: 2026-07-22 20:54:17
Identificationa and follow-up observations of spectroscopically featureless and bright nuclear transient
K-Ryan Hinds, Christoffer Fremling, Mansi Kasliwal, Sam Rose, Maggie Li, Wynn Jacobson-Galán (Caltech), Avinash Singh (…
Source Group: ZTF
Related Objects:
2026plb [ZTF26abbwmoo]
RA, DEC:20:56:47.260, -18:31:04.49
(314.196917, -18.517914)
Redshift:0.03
Type:SN IIn
See object 2026plb [ZTF26abbwmoo]
We report the ongoing evolution of the bright, spectroscopically featureless nuclear transient ZTF26abbwmoo/AT 2026plb.
AstroNote 2026-228
Type: Object/s-Discovery/Classification
Released: 2026-07-20 22:00:08
ATLAS26iur (AT2026ved): discovery of a candidate SN in ESO119-G037(83 Mpc)
K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, T. Moore, J. Weston, X. Sheng, C. R. Angus, D. Magill, A. J. Smith, …
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026ved [ATLAS26iur]
RA, DEC:05:07:52.542, -61:11:36.99
(76.968925, -61.193607)
Redshift:0.01922
Type:SN II
See object 2026ved [ATLAS26iur]
Here we report the ATLAS discovery of the transient ATLAS26iur (AT2026ved) in galaxy ESO119-G037 at magnitude m_o = 18.05 +/- 0.08. At a distance of 83 Mpc, the transient was discovered on MJD = 6123…
AstroNote 2026-227
Type: Object/s-Discovery/Classification
Released: 2026-07-20 21:58:03
ATLAS26ivj (AT2026vek): discovery of a candidate SN in 2MASS J12202804+4826508 (103 Mpc)
X. Sheng (QUB), K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, T. Moore, J. Weston, A. Aamer, C. R. Angus, D. Magil…
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026vek [ATLAS26ivj]
RA, DEC:12:20:28.683, +48:26:39.30
(185.119513, 48.444250)
Redshift:
Type:
See object 2026vek [ATLAS26ivj]
Here we report the ATLAS discovery of the transient ATLAS26ivj (AT2026vek) in galaxy 2MASS J12202804+4826508 at magnitude m_w = 18.27 +/- 0.17. At a distance of 103 Mpc, the transient was discovered …
AstroNote 2026-226
Type: Object/s-Discovery/Classification
Released: 2026-07-20 14:31:10
ATLAS26iuo (AT2026veb): discovery of a candidate SN in MCG-03-34-076 (100 Mpc)
X. Sheng (QUB), K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, T. Moore, J. Weston, C. R. Angus, D. Magill, A. J. S…
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026veb [ATLAS26iuo]
RA, DEC:13:26:10.063, -16:31:39.35
(201.541930, -16.527597)
Redshift:
Type:
See object 2026veb [ATLAS26iuo]
Here we report the ATLAS discovery of the transient ATLAS26iuo (AT2026veb) in galaxy MCG-03-34-076 at magnitude m_o = 18.75 +/- 0.16. At a distance of 100 Mpc, the transient was discovered on MJD = 6…
AstroNote 2026-225
Type: Object/s-Discovery/Classification
Released: 2026-07-20 14:29:16
ATLAS26iup (AT2026vec): discovery of a candidate SN in CGCG 098-034 (93 Mpc)
X. Sheng (QUB), K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, T. Moore, J. Weston, C. R. Angus, D. Magill, A. J. S…
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026vec [ATLAS26iup]
RA, DEC:12:03:23.199, +20:01:09.60
(180.846663, 20.019334)
Redshift:0.021428
Type:SN Ia
See object 2026vec [ATLAS26iup]
Here we report the ATLAS discovery of the transient ATLAS26iup (AT2026vec) in galaxy CGCG 098-034 at magnitude m_o = 18.41 +/- 0.16. At a distance of 93 Mpc, the transient was discovered on MJD = 612…
AstroNote 2026-224
Type: Object/s-Discovery/Classification
Released: 2026-07-19 14:12:33
ATLAS26irw (AT2026vbh): discovery of a candidate SN in MCG -02-04-031 (72 Mpc)
X. Sheng (QUB), K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, T. Moore, J. Weston, C. R. Angus, D. Magill, A. J. S…
Source Group: ATLAS
Keywords: Supernova
Related Objects:
2026vbh [ATLAS26irw]
RA, DEC:01:21:27.834, -10:37:05.07
(20.365976, -10.618076)
Redshift:0.01834
Type:SN Ia
See object 2026vbh [ATLAS26irw]
Here we report the ATLAS discovery of the transient ATLAS26irw (AT2026vbh) in galaxy MCG -02-04-031 at magnitude m_o = 18.02 +/- 0.08. At a distance of 72 Mpc, the transient was discovered on MJD = 6…
AstroNote 2026-223
Type: Object/s-Discovery/Classification
Released: 2026-07-18 13:05:27
ATLAS26iqu (AT2026vay): discovery of a candidate SN in HCC 019 (81 Mpc)
X. Sheng (QUB), K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, T. Moore, J. Weston, C. R. Angus, D. Magill, A. J…
Source Group: ATLAS
Keywords: Supernova
Here we report the ATLAS discovery of the transient ATLAS26iqu (AT2026vay) in galaxy HCC 019 at magnitude m_c = 18.60 +/- 0.12. At a distance of 81 Mpc, the transient was discovered on MJD = 61235.00…
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 2026-221
Type: Object/s-Discovery/Classification
Released: 2026-07-17 17:38:07
ZTF report of the luminous nuclear transient ZTF26aazzexf / AT2026pwc as a possible TDE-featureless
Erica Hammerstein (UC Berkeley), Itai Sfaradi (UC Berkeley), Ryan Chornock (UC Berkeley), Max Velasquez (UC Berkeley), …
Source Group: ZTF
Keywords: TDE
Related Objects:
2026pwc [ZTF26aazzexf]
RA, DEC:13:11:20.569, +79:19:36.02
(197.835704, 79.326671)
Redshift:0.526
Type:TDE-featureless
See object 2026pwc [ZTF26aazzexf]
We report the follow-up observations of ZTF26aazzexf / AT2026pwc which indicate a possible TDE origin. The source was selected by the tdescore ML classifier (Stein+2024, doi: 10.3847/2041-8213/ad3337…
AstroNote 2026-220
Type: Object/s-Discovery/Classification
Released: 2026-07-16 19:13:31
AT 2026rcf and AT 2026tzm: LSST and WFST candidate SN siblings in SDSS J234757.66+001135.0 or two images of a lensed SN?
I. Pérez-Fournon (IAC and ULL), F. Poidevin (IAC and ULL), D. Cano-Morales (ULL), I. Correa-Plasencia (ULL), A.E. Herná…
Source Group: SGLF
Keywords: Time-domain, Transient, Supernova
Related Objects:
2026rcf [LSST-AP-DO-170595943092060203]
RA, DEC:23:47:57.495, +00:11:36.78
(356.989564, 0.193549)
Redshift:0.18
Type:SN Ia
See object 2026rcf [LSST-AP-DO-170595943092060203]
,
2026tzm [WFST260708atocd]
RA, DEC:23:47:57.848, +00:11:36.73
(356.991032, 0.193536)
Redshift:0.18
Type:SN Ia
See object 2026tzm [WFST260708atocd]
We report on two possible supernovae in SDSS J234757.66+001135.0 (a spiral galaxy at a spectroscopic redshift of z = 0.1845583), AT 2026rcf and AT 2026tzm, discovered recently by LSST and WFST, respe…
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 2026-217
Type: Object/s-Discovery/Classification
Released: 2026-07-14 19:11:39
Precursor Watch: Identification and Spectroscopic Follow-up of Low Luminosity Transients from ZTF and Rubin/LSST
Wynn Jacobson-Galán, K-Ryan Hinds, Sam Rose, Kaustav K. Das, Mansi Kasliwal, Theophile Jegou du Laz, Thomas Culino, Chr…
Source Group: ZTF
Related Objects:
2026sfn [ZTF26abgbpyv]
RA, DEC:21:28:47.590, +20:31:03.21
(322.198290, 20.517559)
Redshift:0.0177
Type:SN IIn
See object 2026sfn [ZTF26abgbpyv]
,
2026srw [ZTF26abctnjz]
RA, DEC:22:30:36.777, -00:06:36.54
(337.653236, -0.110149)
Redshift:0.0053
Type:Impostor-SN
See object 2026srw [ZTF26abctnjz]
,
2026qzl [LSST-AP-DO-170591540574421162]
RA, DEC:23:09:23.069, +01:00:10.50
(347.346122, 1.002916)
Redshift:
Type:
See object 2026qzl [LSST-AP-DO-170591540574421162]
We report identification and spectroscopic observations of low luminosity transients and supernova precursor candidates in the ZTF and Rubin/LSST alert streams.
AstroNote 2026-216
Type: Object/s-Discovery/Classification
Released: 2026-07-14 05:47:45
Classification of a Fast and Red Optical Transient in the LSST Alert Stream (170631094842425480 / AT 2026tim)
K-Ryan Hinds (Caltech), Daniel Perley (LJMU), Mansi Kasliwal (Caltech), Sam Whitebook (Caltech), Andrei-Alexandru Crist…
Source Group: ZTF
Related Objects:
2026tim [170631094842425480]
RA, DEC:20:07:41.012, -29:34:37.01
(301.920885, -29.576947)
Redshift:
Type:
See object 2026tim [170631094842425480]
Related Notes:
2026-212
2026-2162026-07-10 01:26:15
Title: Identification of a Fast and Red Optical Transient in the LSST Alert Stream (170631094842425480 / AT 2026tim)
Authors: Michael Camilo (Cornell), Anna Y. Q. Ho (Cornell), Daniel P…
Source Group: ZTF
We report the classification of a fast and red transient in the LSST alert stream (170631094842425480 / AT 2026tim) as stellar variability.
AstroNote 2026-215
Type: Object/s-Discovery/Classification
Released: 2026-07-14 00:57:55
Spectroscopic classification of SN 2026rcy/LSST 170587110502301802 as a hydrogen-poor superluminous supernova (SLSN-I) at a redshift of 0.7
Maggie L. Li, Sam Whitebook, Lin Yan (Caltech), Andrei-Alexandru Cristea (Institute of Science and Technology Austria),…
Keywords: Spectroscopy, Transient, Supernova, Optical
Related Objects:
2026rcy [LSST-AP-DO-170587110502301802]
RA, DEC:21:42:45.018, -17:41:11.12
(325.687576, -17.686422)
Redshift:0.71
Type:SLSN-I
See object 2026rcy [LSST-AP-DO-170587110502301802]
We report the spectroscopic classification of SN 2026rcy as a hydrogen-poor superluminous supernova (SLSN-I) at z ~ 0.7.
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 2026-212
Type: Object/s-Discovery/Classification
Released: 2026-07-10 02:10:58
Identification of a Fast and Red Optical Transient in the LSST Alert Stream (170631094842425480 / AT 2026tim)
Michael Camilo (Cornell), Anna Y. Q. Ho (Cornell), Daniel Perley (LJMU), and Adam Miller (Northwestern)
Source Group: ZTF
Related Objects:
2026tim [170631094842425480]
RA, DEC:20:07:41.012, -29:34:37.01
(301.920885, -29.576947)
Redshift:
Type:
See object 2026tim [170631094842425480]
We report the identification of a fast and red transient in the LSST alert stream (170631094842425480 / AT 2026tim). It has a peak apparent extinction-corrected magnitude of m_z ~ 22.2 mag.
AstroNote 2026-211
Type: Object/s-Discovery/Classification
Released: 2026-07-09 23:23:49
ATLAS26ihd (AT2026sun): discovery of a candidate SN in GALEXASC J040327.94-574334.9 (73 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:
2026sun [ATLAS26ihd]
RA, DEC:04:03:27.102, -57:43:47.16
(60.862926, -57.729766)
Redshift:0.01701
Type:SN II
See object 2026sun [ATLAS26ihd]
Here we report the ATLAS discovery of the transient ATLAS26ihd (AT2026sun) in galaxy GALEXASC J040327.94-574334.9 at magnitude m_o = 18.33 +/- 0.10. At a distance of 73 Mpc, the transient was discove…
AstroNote 2026-210
Type: Object/s-Discovery/Classification
Released: 2026-07-08 06:28:14
Discovery of AT 2026rsp, a supernova candidate near peak — spectroscopic classification requested
Aadi Ajeesh Nair
Keywords: Time-domain, Photometry, Transient, Supernova, Optical
Related Objects:
2026rsp [ZTF26abdqbqw]
RA, DEC:22:22:35.923, +04:44:17.75
(335.649681, 4.738264)
Redshift:
Type:
See object 2026rsp [ZTF26abdqbqw]
We report the discovery of AT 2026rsp (ZTF26abdqbqw), which rose ~1.3 mag over 10 days to a peak of r ~ 19.8 around 2026-07-01/04 and is now slowly declining. ALeRCE light-curve classifiers favor a T…
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 2026-208
Type: Object/s-Discovery/Classification
Released: 2026-07-06 19:02:11
Transient Classification with Gemini
A. Cikota (NOIRLab/Gemini South), P. Pessi (NCBJ), K. Silva (NOIRLab/Gemini South), P. King (NOIRLab/Gemini South), P. …
Source Group: GeminiClass
Keywords: Spectroscopy, Transient, Supernova
Related Objects:
2026pxz
RA, DEC:13:54:19.629, -31:26:26.81
(208.581787, -31.440780)
Redshift:0.039
Type:SN Ia
See object 2026pxz
,
2026qfd
RA, DEC:21:59:43.845, -20:01:20.39
(329.932687, -20.022331)
Redshift:0.16
Type:SN Ia
See object 2026qfd
We report spectroscopic observations of 2 SNe Ia
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 2026-206
Type: Object/s-Discovery/Classification
Released: 2026-06-30 08:45:11
Candidate SN with precursor activity in Rubin (LSST-AP-DO-170587106692825120) - AT2024lwa
H. F. Stevance (Oxford), D. R. Young (QUB), K. W. Smith(Oxford/QUB), S. J. Smartt (Oxford/QUB), M. Nicholl (QUB), R. D…
Source Group: Lasair
Keywords: Supernova
Related Objects:
2024lwa [LSST-AP-DO-170587106692825120]
RA, DEC:22:32:47.058, -09:26:49.23
(338.196074, -9.447009)
Redshift:0.05689
Type:SN II
See object 2024lwa [LSST-AP-DO-170587106692825120]
Here we report the discovery of a new transient LSST-AP-DO-170257199649521669 coincident with AT 2024lwa, in the Rubin LSST alert stream, identified by the Lasair broker with an LVRA score of 0.92. …
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:19:38:38.955, -39:39:49.74
(294.662314, -39.663815)
Redshift:0.032
Type:SN II
See object 2026puh
,
2026qbu
RA, DEC:14:03:04.631, +08:56:52.98
(210.769297, 8.948051)
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:0.01943
Type:SN Ib
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:13:43:31.316, -28:57:13.11
(205.880483, -28.953642)
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:22:31:23.085, -19:34:46.69
(337.846189, -19.579635)
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:17:48:25.737, +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…

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