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Active supernovae

The below table lists all currently active (candidate) supernovae brighter than magnitude 18.
For more information about a certain supernova, click on its designation.

Supernova Discovery Maximum Last observed
designation host type ra dec date discoverer(s) date magn date magn
AT2020abhg?21:07:57.62+31:50:30.91 Dec 2020ATLAS1 Dec 202017.51 Dec 202017.5
AT2020abhe?19:59:50.48-11:41:20.01 Dec 2020ATLAS1 Dec 202017.81 Dec 202017.8
AT2020abhf?20:01:30.62-04:08:08.11 Dec 2020ATLAS1 Dec 202016.91 Dec 202016.9
AT2020abirNGC 5331 NED02?13:52:16.53+02:06:25.71 Dec 2020ZTF1 Dec 202017.31 Dec 202017.3
AT2020abhs?12:54:57.40-13:32:29.51 Dec 2020ZTF1 Dec 202017.31 Dec 202017.3
2020abgqNGC 4454Ia12:28:50.28-01:56:38.630 Nov 2020Koichi Itagaki30 Nov 202016.330 Nov 202016.3
AT2020abhcLEDA 462566?02:41:33.91-50:49:52.630 Nov 2020Gaia30 Nov 202017.430 Nov 202017.4
AT2020abgp?10:08:05.86+05:11:46.430 Nov 2020ZTF30 Nov 202015.530 Nov 202015.5
AT2020abgh?07:24:00.74-28:39:08.430 Nov 2020ATLAS30 Nov 202016.630 Nov 202016.6
AT2020abgd?01:52:53.25-09:44:19.729 Nov 2020ATLAS29 Nov 202017.829 Nov 202017.8
AT2020abcpCGCG 044-044?13:15:54.87+08:01:39.428 Nov 2020ATLAS28 Nov 202017.128 Nov 202017.1
AT2020abbqYSO05:50:17.63-64:28:55.528 Nov 2020MASTER28 Nov 202015.028 Nov 202015.0
AT2020abcu?13:35:23.52+28:57:34.028 Nov 2020ATLAS28 Nov 202017.828 Nov 202017.8
AT2020abcs?22:41:25.81-24:11:50.528 Nov 2020ATLAS28 Nov 202017.928 Nov 202017.9
AT2020abfh?09:48:58.62+77:14:37.527 Nov 2020ZTF27 Nov 202013.827 Nov 202013.8
AT2020aazb?05:44:58.83+70:40:15.926 Nov 2020ZTF26 Nov 202016.726 Nov 202016.7
AT2020aaxsNGC 5394?13:58:33.94+37:27:11.525 Nov 2020ZTF25 Nov 202017.025 Nov 202017.0
AT2020abdc?22:57:43.31+37:03:07.625 Nov 2020ZTF25 Nov 202016.625 Nov 202016.6
AT2020abdb?20:40:29.02+03:28:38.725 Nov 2020ZTF25 Nov 202017.525 Nov 202017.5
2020aavbNGC 3697Ia11:28:48.44+20:47:37.023 Nov 2020Italian Supernovae Search Project26 Nov 202016.126 Nov 202016.1
2020aatbNGC 1906II05:24:46.41-15:56:31.423 Nov 2020ZTF23 Nov 202017.623 Nov 202017.6
AT2020aaye?04:10:20.43-78:16:25.423 Nov 2020Gaia23 Nov 202017.723 Nov 202017.7
AT2020aaxg?06:33:59.09+32:52:23.523 Nov 2020MASTER23 Nov 202015.023 Nov 202015.0
AT2020aaycLMC?05:27:14.51-69:49:53.323 Nov 2020Gaia23 Nov 202016.223 Nov 202016.2
AT2020aaryIa03:21:29.88-61:46:11.922 Nov 2020ASAS-SN22 Nov 202016.622 Nov 202016.6
AT2020aavk?07:39:18.97+25:24:40.822 Nov 2020ATLAS22 Nov 202016.226 Nov 202016.8
AT2020abdx?23:39:53.74-12:17:33.920 Nov 2020ZTF20 Nov 202017.720 Nov 202017.7
2020aaprII07:28:04.33+66:22:29.119 Nov 2020ATLAS22 Nov 202017.522 Nov 202017.5
2020aakpPGC 19480Ia06:43:06.17-74:12:48.918 Nov 2020ASAS-SN18 Nov 202017.518 Nov 202017.5
AT2020aapg?18:31:51.40-47:11:46.518 Nov 2020Gaia18 Nov 202015.118 Nov 202015.1
2020aagyII00:57:09.47+54:44:50.617 Nov 2020ATLAS17 Nov 202016.917 Nov 202016.9
AT2020aagx?22:15:28.97+68:35:11.517 Nov 2020ATLAS17 Nov 202016.918 Nov 202017.0
AT2020aagt?12:04:49.02-05:35:54.817 Nov 2020ATLAS17 Nov 202017.717 Nov 202017.7
AT2020aacyLMCEGN04:49:38.26-68:53:51.017 Nov 2020ASAS-SN17 Nov 202011.117 Nov 202011.1
AT2020aahu?15:25:42.25-69:56:50.816 Nov 2020Gaia16 Nov 202017.216 Nov 202017.2
AT2020aaix?11:06:49.26+47:51:11.716 Nov 2020ASAS-SN16 Nov 202017.516 Nov 202017.5
AT2020aahv?08:03:28.99-10:51:19.516 Nov 2020Gaia16 Nov 202017.516 Nov 202017.5
AT2020aabf?06:41:09.68+19:47:31.116 Nov 2020M. Forslund, B. Forslund16 Nov 202016.416 Nov 202016.4
AT2020zxa?07:14:36.45-36:03:08.716 Nov 2020ATLAS16 Nov 202017.616 Nov 202017.6
AT2020aadx?08:52:42.65-33:59:03.215 Nov 2020Gaia15 Nov 202017.615 Nov 202017.6
AT2020zvs?20:13:36.59+23:42:59.514 Nov 2020M. Forslund, B. Forslund14 Nov 202017.414 Nov 202017.4
2020zoqUGC 5760II10:36:21.54+13:43:08.914 Nov 2020ASAS-SN14 Nov 202017.514 Nov 202017.5
AT2020zre?06:54:00.70-65:25:01.013 Nov 2020ASAS-SN13 Nov 202016.813 Nov 202016.8
AT2020zrd?11:15:11.97-52:35:42.713 Nov 2020Gaia13 Nov 202017.213 Nov 202017.2
AT2020zmw?21:36:25.10-15:02:32.513 Nov 2020ASAS-SN13 Nov 202016.813 Nov 202016.8
AT2020znx?10:05:07.01-30:03:43.512 Nov 2020Gaia12 Nov 202017.712 Nov 202017.7
AT2020znw?20:35:22.92-08:16:18.312 Nov 2020Gaia12 Nov 202017.712 Nov 202017.7
AT2020znp?05:40:16.08-11:22:19.312 Nov 2020ZTF12 Nov 202017.712 Nov 202017.7
AT2020zgw?10:14:20.69-04:18:40.012 Nov 2020ZTF12 Nov 202017.912 Nov 202017.9
2020zguIa10:03:36.90+45:17:56.912 Nov 2020ZTF29 Nov 202017.429 Nov 202017.4
2020zglMrk 1131Ib-pec23:28:01.14-02:09:53.611 Nov 2020ZTF11 Nov 202017.811 Nov 202017.8
AT2020zly?17:45:30.41-56:58:24.611 Nov 2020Gaia11 Nov 202017.211 Nov 202017.2
2020zlzIa19:59:54.91-33:07:29.511 Nov 2020Gaia11 Nov 202015.926 Nov 202016.6
AT2020zdl?20:58:16.98+23:58:11.410 Nov 2020MASTER10 Nov 202017.310 Nov 202017.3
AT2020znn?00:43:05.59+37:03:32.110 Nov 2020MASTER10 Nov 202015.810 Nov 202015.8
AT2020zmd?17:28:02.08-59:42:31.610 Nov 2020Gaia10 Nov 202016.210 Nov 202016.2
2020zdmIa06:29:22.21-48:51:58.110 Nov 2020ASAS-SN10 Nov 202017.810 Nov 202017.8
AT2020znm?19:10:59.45+28:56:38.39 Nov 2020MASTER9 Nov 202015.29 Nov 202015.2
AT2020zls?17:32:39.81-60:53:12.69 Nov 2020Gaia9 Nov 202016.59 Nov 202016.5
AT2020zbwIC 4853?19:30:47.91-71:04:17.39 Nov 2020ASAS-SN9 Nov 202016.59 Nov 202016.5
AT2020zby?11:49:27.23-46:00:26.99 Nov 2020MASTER9 Nov 202017.29 Nov 202017.2
AT2020zal?20:26:59.91-33:40:19.18 Nov 2020ATLAS9 Nov 202017.69 Nov 202017.6
2020zadIa18:05:53.04+34:01:14.58 Nov 2020ATLAS25 Nov 202016.225 Nov 202016.2
2020yzqNGC 6628II18:22:23.33+23:28:32.27 Nov 2020XOSS10 Nov 202016.226 Nov 202017.3
2020yzoESO 34-G12II06:43:32.10-72:35:25.56 Nov 2020ASAS-SN6 Nov 202015.922 Nov 202016.2
AT2020zbo?03:22:16.12-33:49:17.86 Nov 2020ASAS-SN6 Nov 202017.06 Nov 202017.0
AT2020zbx?19:41:38.62-50:10:11.86 Nov 2020ASAS-SN8 Nov 202016.38 Nov 202016.3
2020yznESO 142-G19Ia-91bg19:33:22.41-58:07:22.16 Nov 2020ASAS-SN7 Nov 202016.37 Nov 202016.3
AT2020zec?14:21:08.32-68:13:57.65 Nov 2020Gaia5 Nov 202015.35 Nov 202015.3
AT2020zdy?01:03:18.60+05:51:12.35 Nov 2020ZTF5 Nov 202016.05 Nov 202016.0
AT2020zdv?20:42:22.95+80:05:39.95 Nov 2020ZTF5 Nov 202017.55 Nov 202017.5
AT2020zdp?20:30:35.10-21:46:53.75 Nov 2020ZTF5 Nov 202017.65 Nov 202017.6
AT2020zmh?12:22:42.60-56:15:45.44 Nov 2020Gaia4 Nov 202017.64 Nov 202017.6
AT2020znb?07:03:50.20+27:00:15.94 Nov 2020ZTF4 Nov 202016.64 Nov 202016.6
2020yvuIa23:00:59.87+40:54:38.24 Nov 2020ATLAS11 Nov 202016.111 Nov 202016.1
AT2020yws?05:26:06.37-63:49:15.04 Nov 2020MASTER4 Nov 202015.94 Nov 202015.9
AT2020yvt?10:03:51.82+59:26:10.34 Nov 2020ZTF4 Nov 202017.64 Nov 202017.6
2020ywxIIn11:53:26.23+10:53:47.24 Nov 2020ATLAS4 Nov 202016.54 Nov 202016.5
AT2020aayxESO 74-IG13?20:51:23.77-67:55:37.14 Nov 2020Gaia4 Nov 202017.94 Nov 202017.9
AT2020yvz?21:35:44.03+48:03:57.73 Nov 2020XOSS3 Nov 202017.53 Nov 202017.5
AT2020yvp?11:56:30.35-63:10:24.12 Nov 2020Gaia2 Nov 202016.72 Nov 202016.7
AT2020yvo?21:16:09.98-75:46:44.92 Nov 2020Gaia2 Nov 202017.62 Nov 202017.6
AT2020ypuM31EGN00:42:46.77+41:07:03.11 Nov 2020XOSS9 Nov 202017.99 Nov 202017.9
2020yslIa08:05:42.08-09:48:52.51 Nov 2020ATLAS16 Nov 202017.616 Nov 202017.6
AT2020yry?10:57:56.94-71:59:59.231 Oct 2020Gaia31 Oct 202017.231 Oct 202017.2
AT2020ykyM31?00:42:20.16+41:14:28.531 Oct 2020XOSS9 Nov 202017.69 Nov 202017.6
2020ykzNGC 6960II20:45:22.59+30:29:24.031 Oct 2020ATLAS8 Nov 202017.58 Nov 202017.5
AT2020ypj?18:00:44.88+13:09:20.730 Oct 2020ZTF30 Oct 202017.530 Oct 202017.5
AT2020yri?19:17:02.47+37:52:29.130 Oct 2020XOSS30 Oct 202017.830 Oct 202017.8
AT2020ymj?21:44:51.48+68:19:52.329 Oct 2020Gaia29 Oct 202017.629 Oct 202017.6
AT2020yph?20:06:52.12-18:25:03.329 Oct 2020ZTF29 Oct 202016.829 Oct 202016.8
AT2020yjt?11:12:33.74-06:16:57.728 Oct 2020Gaia28 Oct 202017.928 Oct 202017.9
AT2020ypl?19:42:40.65-17:27:07.628 Oct 2020ZTF28 Oct 202017.928 Oct 202017.9
2020yjfIa09:42:35.62-03:29:24.628 Oct 2020ZTF10 Nov 202016.710 Nov 202016.7
AT2020zna?03:58:59.38-18:04:21.228 Oct 2020ZTF28 Oct 202017.528 Oct 202017.5
AT2020yku?21:28:03.89-27:13:13.327 Oct 2020ZTF27 Oct 202017.427 Oct 202017.4
2020ygvIa07:48:36.88-60:19:35.026 Oct 2020Gaia26 Oct 202017.526 Oct 202017.5
AT2020yeqSMCEGN00:48:44.58-72:53:53.826 Oct 2020ASAS-SN31 Oct 202010.931 Oct 202010.9
AT2020yfz?19:41:30.41+55:47:38.625 Oct 2020Gaia25 Oct 202017.025 Oct 202017.0
AT2020ytw?03:28:49.21+37:15:22.925 Oct 2020PS125 Oct 202017.925 Oct 202017.9
AT2020ycs?05:07:05.34+77:12:52.224 Oct 2020GSNST24 Oct 202016.424 Oct 202016.4
AT2020yea?00:19:12.21+00:23:19.324 Oct 2020MASTER24 Oct 202016.924 Oct 202016.9
AT2020yci?20:13:57.07+18:41:22.423 Oct 2020ZTF23 Oct 202016.823 Oct 202016.8
2020xywIC 2200AIa07:28:07.98-62:21:29.022 Oct 2020DLT4026 Oct 202015.426 Oct 202015.4
2020yavIa07:27:59.03+53:04:06.622 Oct 2020ATLAS8 Nov 202017.28 Nov 202017.2
AT2020xyvM31FeII00:42:37.33+41:20:51.921 Oct 2020XOSS22 Oct 202016.922 Oct 202016.9
2020xuaUGC 12218II22:51:22.18+32:21:04.921 Oct 2020ATLAS7 Nov 202016.97 Nov 202016.9
2020xtzNGC 6574Ia18:11:51.10+14:58:56.821 Oct 2020ZTF10 Nov 202014.110 Nov 202014.1
AT2020ybf?04:29:47.40-67:03:20.320 Oct 2020ASAS-SN20 Oct 202017.120 Oct 202017.1
AT2020yei?02:42:53.39+38:04:03.818 Oct 2020MASTER18 Oct 202016.118 Oct 202016.1
AT2020xysOther06:29:56.85-26:58:31.917 Oct 2020ZTF17 Oct 202017.617 Oct 202017.6
AT2020yck?19:11:24.87+36:24:49.217 Oct 2020ZTF17 Oct 202017.517 Oct 202017.5
AT2020vakM31FeII00:42:49.62+41:16:52.17 Oct 2020XOSS18 Oct 202014.623 Oct 202015.8
AT2020yxq?03:33:07.78-13:54:33.26 Oct 2020ZTF6 Oct 202017.86 Oct 202017.8
2020uynIa-91T19:10:25.42+47:40:02.75 Oct 2020TMTS5 Oct 202016.923 Oct 202017.6
2020uxzNGC 514Ia01:24:06.89+12:55:17.35 Oct 2020Koichi Itagaki23 Oct 202013.514 Nov 202014.5
AT2020aagj?05:08:47.57-09:34:47.22 Oct 2020ZTF2 Oct 202017.72 Oct 202017.7
2020ukxNGC 2784Ia09:12:20.54-24:10:19.328 Sep 2020ASAS-SN30 Sep 202015.222 Oct 202015.0
2020ssfNGC 7722Ia23:38:40.87+15:57:14.56 Sep 2020ZTF21 Sep 202013.617 Oct 202015.9
2020sccNGC 2782Ia09:14:09.00+40:04:40.920 Aug 2020XOSS20 Aug 202013.720 Oct 202016.8
2020rcqUGC 6930Ia11:57:14.68+49:17:32.09 Aug 2020ZTF25 Aug 202011.816 Nov 202015.2
2020qmpUGC 7125II12:08:44.44+36:48:17.324 Jul 2020PGIR14 Nov 202014.114 Nov 202014.1
2020nlbM85Ia12:25:24.18+18:12:12.525 Jun 2020ATLAS11 Jul 202012.016 Nov 202015.7
AT2016bluNGC 4559LBV12:35:52.30+27:55:55.911 Jan 2012LOSS11 Jan 201216.717 Nov 202016.9
 



    Terminology:
            
    magn:       Magnitude (brightness) estimate    
    ra:         Right ascension
    dec:        Declination

Active supernova data as provided by ASRAS (Astronomy Section Rochester Academy of Science).
Calculations by a modified version of AAPlus, a C# implementation of the AA+ project by PJ Naughter from the algorithms presented in the book "Astronomical Algorithms" by Jean Meeus.
NGC2000 dso catalog and star labels from VizieR as provided by the Strasbourg astronomical Data Center.
Tycho2 catalog from the ESO archive.