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
AT2021zjr?05:00:32.66+37:36:42.124 Sep 2021GEOTS24 Sep 202116.324 Sep 202116.3
AT2021zjq?04:38:06.46+46:28:40.324 Sep 2021GEOTS24 Sep 202116.424 Sep 202116.4
AT2021zgg?06:51:45.91-42:13:24.822 Sep 2021ATLAS22 Sep 202116.322 Sep 202116.3
AT2021zgd?21:15:46.87-34:49:18.022 Sep 2021ATLAS22 Sep 202116.822 Sep 202116.8
AT2021zgc?20:03:30.39-38:19:26.822 Sep 2021ATLAS22 Sep 202117.422 Sep 202117.4
AT2021zhi?08:41:56.77-00:03:40.322 Sep 2021ZTF22 Sep 202117.022 Sep 202117.0
2021zgfIa01:45:23.25-42:42:01.022 Sep 2021ATLAS22 Sep 202117.522 Sep 202117.5
AT2021znyCGCG 438-018?02:03:35.80+15:44:33.422 Sep 2021ZTF26 Sep 202117.226 Sep 202117.2
2021zfwIa21:31:37.68+11:49:58.622 Sep 2021PS122 Sep 202117.022 Sep 202117.0
AT2021zfiAGN20:11:58.74-19:22:45.921 Sep 2021BraTS21 Sep 202114.921 Sep 202114.9
2021zfsIa21:32:29.83+05:20:46.721 Sep 2021ATLAS21 Sep 202116.221 Sep 202116.2
AT2021zen?20:10:46.36+51:21:24.519 Sep 2021ZTF19 Sep 202117.619 Sep 202117.6
2021zbyNGC 1166II03:00:35.63+11:50:29.517 Sep 2021ATLAS19 Sep 202117.419 Sep 202117.4
AT2021zbu?01:05:38.97+10:36:29.816 Sep 2021XOSS16 Sep 202117.116 Sep 202117.1
AT2021zfl?20:33:23.67+54:12:45.016 Sep 2021ZTF16 Sep 202117.616 Sep 202117.6
AT2021zbl?18:17:10.45+13:32:55.716 Sep 2021ZTF16 Sep 202117.616 Sep 202117.6
AT2021zbk?20:17:17.62+13:20:53.616 Sep 2021ZTF16 Sep 202117.916 Sep 202117.9
AT2021yzf?18:55:52.43-69:49:10.715 Sep 2021GSNST15 Sep 202117.815 Sep 202117.8
AT2021yvz?23:36:27.26+27:02:19.414 Sep 2021MASTER14 Sep 202116.214 Sep 202116.2
AT2021ywx?19:56:28.95+05:49:55.414 Sep 2021ZTF14 Sep 202117.414 Sep 202117.4
AT2021zlh?14:57:53.39-68:21:38.414 Sep 2021Gaia14 Sep 202117.114 Sep 202117.1
2021yweIa07:27:35.97+57:10:14.614 Sep 2021ZTF14 Sep 202117.814 Sep 202117.8
AT2021yzw?08:22:06.80+15:35:00.914 Sep 2021ZTF14 Sep 202117.914 Sep 202117.9
AT2021zkfYSO21:39:58.25+50:14:21.013 Sep 2021Gaia13 Sep 202111.213 Sep 202111.2
AT2021zkjYSO10:03:05.57-52:33:49.513 Sep 2021Gaia13 Sep 202112.913 Sep 202112.9
AT2021zkg?20:45:13.12+20:31:03.913 Sep 2021Gaia13 Sep 202116.913 Sep 202116.9
AT2021zkdYSO22:53:33.25+62:32:23.613 Sep 2021Gaia13 Sep 202117.413 Sep 202117.4
AT2021zki?09:02:27.80-30:14:11.013 Sep 2021Gaia13 Sep 202117.713 Sep 202117.7
AT2021yuk?02:52:14.64+00:20:10.813 Sep 2021ATLAS13 Sep 202116.913 Sep 202116.9
AT2021ypnM31FeII00:42:42.97+41:17:57.411 Sep 2021XOSS11 Sep 202117.011 Sep 202117.0
AT2021zjm?21:01:48.70+48:08:59.411 Sep 2021Gaia11 Sep 202117.611 Sep 202117.6
AT2021ziy?21:01:52.71+68:09:51.910 Sep 2021Gaia10 Sep 202117.210 Sep 202117.2
AT2021zixYSO?08:39:41.66-41:04:52.310 Sep 2021Gaia10 Sep 202115.410 Sep 202115.4
AT2021ziwulens?20:29:41.89+31:17:42.910 Sep 2021Gaia10 Sep 202115.410 Sep 202115.4
AT2021ymlNova?20:07:56.96+20:41:58.110 Sep 2021MASTER10 Sep 202116.510 Sep 202116.5
AT2021yov?19:46:00.97+09:40:10.510 Sep 2021MASTER10 Sep 202117.410 Sep 202117.4
2021yokUGC 3873II07:28:55.48+20:35:09.910 Sep 2021ATLAS10 Sep 202117.410 Sep 202117.4
2021yngIa03:14:31.01-74:50:13.210 Sep 2021ASAS-SN10 Sep 202117.010 Sep 202117.0
AT2021zieYSO20:59:14.16+78:23:04.39 Sep 2021Gaia9 Sep 202116.89 Sep 202116.8
2021yjaNGC 1325II03:24:21.17-21:33:56.28 Sep 2021ATLAS15 Sep 202114.226 Sep 202114.5
AT2021zhlAGN07:59:41.82-38:43:56.18 Sep 2021Gaia8 Sep 202116.08 Sep 202116.0
2021yhlIa09:03:30.38+23:01:57.88 Sep 2021ZTF8 Sep 202117.18 Sep 202117.1
AT2021zhf?08:01:00.89-18:06:07.48 Sep 2021Gaia8 Sep 202117.68 Sep 202117.6
AT2021zhd?19:57:44.46+28:52:35.58 Sep 2021Gaia8 Sep 202117.38 Sep 202117.3
AT2021ygv?05:41:15.35-69:36:47.56 Sep 2021Gaia6 Sep 202116.46 Sep 202116.4
AT2021ygo?09:05:13.36+61:01:57.96 Sep 2021Gaia6 Sep 202117.96 Sep 202117.9
AT2021yemLMC?05:15:30.17-70:27:35.15 Sep 2021Gaia5 Sep 202115.65 Sep 202115.6
AT2021yen?19:17:04.45+26:53:21.75 Sep 2021Gaia5 Sep 202116.85 Sep 202116.8
AT2021yeo?19:29:13.95+06:40:19.85 Sep 2021Gaia5 Sep 202117.85 Sep 202117.8
AT2021ydqESO 221- G 007?13:50:25.58-52:40:12.55 Sep 2021ASAS-SN5 Sep 202116.65 Sep 202116.6
2021yalIa-91T03:23:46.67+00:01:48.35 Sep 2021ATLAS5 Sep 202116.95 Sep 202116.9
AT2021xysESO 163-G14?07:43:45.77-56:45:58.64 Sep 2021MASTER4 Sep 202115.523 Sep 202117.5
AT2021xyxulens?19:13:42.48+04:54:55.73 Sep 2021Gaia3 Sep 202117.63 Sep 202117.6
AT2021xmr?19:54:49.64-76:37:12.02 Sep 2021MASTER2 Sep 202116.02 Sep 202116.0
AT2021xwc?06:47:57.03-02:23:53.61 Sep 2021Gaia1 Sep 202117.41 Sep 202117.4
AT2021xsr?19:05:07.03-11:16:29.31 Sep 2021Gaia1 Sep 202117.71 Sep 202117.7
AT2021xvz?19:15:25.64-13:31:07.61 Sep 2021Gaia1 Sep 202115.81 Sep 202115.8
2021xjjESO 162-G18Ia07:17:42.50-55:58:52.831 Aug 2021ASAS-SN31 Aug 202117.17 Sep 202117.8
AT2021xha?17:22:02.29-64:54:31.031 Aug 2021MASTER31 Aug 202117.331 Aug 202117.3
2021xmnIa04:34:59.56-35:37:27.931 Aug 2021ATLAS31 Aug 202117.931 Aug 202117.9
2021xjuESO 186-G37Ia20:22:31.06-53:16:43.931 Aug 2021ASAS-SN24 Sep 202114.824 Sep 202114.8
AT2021xmwYSO06:31:36.87+04:51:04.330 Aug 2021Gaia30 Aug 202115.230 Aug 202115.2
AT2021xjb?16:36:38.36-62:35:39.830 Aug 2021MASTER30 Aug 202117.030 Aug 202117.0
AT2021xms?18:40:05.77-08:07:12.230 Aug 2021Gaia30 Aug 202117.030 Aug 202117.0
AT2021xgxUGC 10607Ia16:55:09.43+26:39:49.129 Aug 2021ASAS-SN31 Aug 202117.031 Aug 202117.0
AT2021xkcQSO00:35:03.46-57:26:08.028 Aug 2021Gaia28 Aug 202117.528 Aug 202117.5
AT2021xkiYSO05:41:41.86-01:58:49.228 Aug 2021Gaia28 Aug 202117.728 Aug 202117.7
AT2021xbhNova?05:39:34.69+57:15:15.927 Aug 2021XOSS27 Aug 202113.627 Aug 202113.6
AT2021wyyNGC 5357?13:56:06.47-30:21:23.427 Aug 2021ASAS-SN27 Aug 202116.127 Aug 202116.1
AT2021xjv?06:31:30.06+26:03:01.227 Aug 2021Gaia27 Aug 202117.227 Aug 202117.2
AT2021xjzulens?18:19:33.59-18:21:59.227 Aug 2021Gaia27 Aug 202117.827 Aug 202117.8
2021wydMCG +3-47-6Ia18:34:17.86+18:11:22.226 Aug 2021ZTF2 Sep 202117.92 Sep 202117.9
AT2021xgr?19:04:02.08-35:23:35.926 Aug 2021Gaia26 Aug 202115.026 Aug 202115.0
AT2021wyj?19:22:21.15-17:14:17.826 Aug 2021ZTF26 Aug 202117.726 Aug 202117.7
AT2021wzjulens?18:11:37.25-28:18:58.425 Aug 2021Gaia25 Aug 202116.525 Aug 202116.5
AT2021wziulens?18:31:47.42-32:03:07.025 Aug 2021Gaia25 Aug 202116.825 Aug 202116.8
AT2021wwoLEDA 909099?14:05:55.54-15:35:36.525 Aug 2021ATLAS25 Aug 202117.925 Aug 202117.9
2021wwlIa-91T04:19:54.17-41:22:49.225 Aug 2021ATLAS25 Aug 202117.525 Aug 202117.5
2021wywNGC 7501Ia23:10:29.53+07:35:19.825 Aug 2021ZTF1 Sep 202116.811 Sep 202117.0
AT2021wve?19:01:53.19-16:10:50.624 Aug 2021ZTF24 Aug 202116.724 Aug 202116.7
AT2021wxjYSO?17:44:41.91-28:47:10.424 Aug 2021Gaia24 Aug 202117.424 Aug 202117.4
2021wvwUGC 2605II03:14:47.40+40:15:47.724 Aug 2021PS124 Aug 202117.924 Aug 202117.9
2021wvdII15:10:34.96+13:27:30.424 Aug 2021ZTF29 Aug 202117.529 Aug 202117.5
AT2021wvp?18:36:40.74-44:27:12.823 Aug 2021Gaia23 Aug 202116.423 Aug 202116.4
2021wufNGC 6500Ia17:56:02.51+18:21:14.123 Aug 2021ATLAS29 Aug 202113.810 Sep 202114.1
AT2021xtd?03:49:33.20-08:08:28.322 Aug 2021ATLAS22 Aug 202117.722 Aug 202117.7
AT2021wux?19:27:02.37-52:11:14.722 Aug 2021Gaia22 Aug 202117.822 Aug 202117.8
AT2021wuj?05:33:48.49+41:08:28.321 Aug 2021Gaia21 Aug 202117.821 Aug 202117.8
AT2021xtfPGC 64029?20:02:57.52-55:57:29.521 Aug 2021Peter Marples, Greg Bock and Pat Pearl3 Sep 202116.812 Sep 202117.2
AT2021wkxFlare16:58:19.02+64:42:13.920 Aug 2021MASTER20 Aug 202116.520 Aug 202116.5
2021wqiNGC 5513Ia14:13:08.61+20:24:57.120 Aug 2021Gaia20 Aug 202115.720 Aug 202115.7
2021wkwCGCG 027-005Ia17:43:20.05-01:41:11.620 Aug 2021ATLAS28 Aug 202117.828 Aug 202117.8
AT2021wjg?02:29:06.30+27:52:21.719 Aug 2021MASTER19 Aug 202117.519 Aug 202117.5
AT2021wknulens?17:05:32.38-47:17:31.818 Aug 2021Gaia18 Aug 202114.618 Aug 202114.6
AT2021wkqFlare16:44:50.21-45:15:48.118 Aug 2021Gaia18 Aug 202116.318 Aug 202116.3
2021winIa05:06:19.36+22:30:44.618 Aug 2021ZTF4 Sep 202115.210 Sep 202115.4
2021wjnLEDA 981195Ia03:44:41.50-10:11:40.818 Aug 2021ATLAS5 Sep 202116.616 Sep 202117.9
2021wjbIC 4931Ia20:00:49.91-38:34:38.018 Aug 2021ASAS-SN30 Aug 202115.930 Aug 202115.9
2021wfdMCG -3-13-52Ia05:01:41.90-15:09:52.817 Aug 2021ASAS-SN17 Aug 202117.217 Aug 202117.2
AT2021whp?07:35:02.39+64:34:40.317 Aug 2021Gaia17 Aug 202117.917 Aug 202117.9
AT2021wim?01:50:47.28-23:23:58.817 Aug 2021ATLAS6 Sep 202115.217 Sep 202116.0
AT2021wjkYSO03:30:36.99+30:31:27.417 Aug 2021Gaia17 Aug 202117.817 Aug 202117.8
AT2021whsQSO12:57:57.23+32:29:29.416 Aug 2021Gaia16 Aug 202116.616 Aug 202116.6
AT2021wfbXRB15:47:08.26-47:40:10.416 Aug 2021Gaia16 Aug 202114.516 Aug 202114.5
AT2021waaAfterglow23:41:59.18-25:31:36.015 Aug 2021MASTER15 Aug 202116.615 Aug 202116.6
2021wadNGC 4896Ia13:00:31.39+28:20:47.015 Aug 2021ATLAS15 Aug 202117.715 Aug 202117.7
AT2021wtx?23:20:32.22-25:04:41.915 Aug 2021MASTER15 Aug 202115.415 Aug 202115.4
AT2021weyQSO13:52:32.58+00:42:52.515 Aug 2021Gaia15 Aug 202117.915 Aug 202117.9
AT2021yvy?15:20:43.24+30:41:22.615 Aug 2021ZTF15 Aug 202117.815 Aug 202117.8
AT2021wakulens?16:01:54.44-61:35:10.514 Aug 2021Gaia14 Aug 202117.714 Aug 202117.7
AT2021vye?04:58:08.01-21:26:17.014 Aug 2021ASAS-SN14 Aug 202117.614 Aug 202117.6
AT2021vyzFlare05:58:13.97+72:41:32.213 Aug 2021Gaia13 Aug 202116.813 Aug 202116.8
2021wcuIa07:20:25.12+32:51:05.313 Aug 2021ZTF13 Aug 202115.817 Sep 202117.7
2021vtqESO 540-G25Ia00:47:38.94-20:31:24.512 Aug 2021ZTF28 Aug 202115.57 Sep 202115.7
AT2021vyw?13:13:45.27+00:56:04.012 Aug 2021Gaia12 Aug 202115.712 Aug 202115.7
AT2021vvo?23:12:26.98+41:13:44.012 Aug 2021ZTF12 Aug 202117.412 Aug 202117.4
AT2021vuo?13:18:18.78-28:01:46.011 Aug 2021Gaia11 Aug 202117.611 Aug 202117.6
AT2021vww?17:57:43.85+19:10:48.611 Aug 2021MASTER11 Aug 202116.811 Aug 202116.8
2021vtlNGC 940Ia02:29:28.07+31:38:38.111 Aug 2021XOSS20 Aug 202115.83 Sep 202116.1
2021vjxIa01:47:09.93-05:37:30.39 Aug 2021ZTF16 Aug 202116.728 Aug 202117.4
2021vwxIa04:33:37.21-22:02:02.59 Aug 2021ASAS-SN28 Aug 202117.428 Aug 202117.4
2021vilIa16:07:48.10+39:11:37.18 Aug 2021ZTF24 Aug 202116.929 Aug 202117.3
2021vpvIa22:22:05.18+19:52:36.17 Aug 2021ATLAS1 Sep 202116.51 Sep 202116.5
2021vazNGC 1961II05:42:01.72+69:22:36.75 Aug 2021Koichi Itagaki6 Aug 202116.03 Sep 202116.1
AT2021vbz?14:23:36.56-54:31:08.75 Aug 2021MASTER5 Aug 202117.75 Aug 202117.7
AT2021vdy?08:49:50.43-79:00:07.15 Aug 2021Gaia5 Aug 202116.45 Aug 202116.4
AT2021vba?04:38:19.09+60:16:51.25 Aug 2021Kumar5 Aug 202116.75 Aug 202116.7
AT2021uxbESO 142-G52?19:55:10.82-61:55:47.84 Aug 2021ASAS-SN18 Aug 202117.418 Aug 202117.4
AT2021uwv?14:22:06.43-26:51:25.04 Aug 2021MASTER4 Aug 202117.74 Aug 202117.7
2021vavCGCG 137-020Ia16:02:45.04+25:15:08.24 Aug 2021ASAS-SN4 Aug 202117.94 Aug 202117.9
2021vauUGC 3240Ia05:04:17.63+04:39:04.04 Aug 2021ASAS-SN4 Aug 202116.825 Aug 202117.5
2021vacESO 114-IG9Ia01:47:49.08-61:20:53.23 Aug 2021ASAS-SN4 Aug 202117.54 Aug 202117.5
AT2021vad?12:37:21.00+38:08:21.63 Aug 2021Gaia3 Aug 202117.63 Aug 202117.6
AT2021vaf?10:55:57.51-33:05:46.53 Aug 2021Gaia3 Aug 202116.83 Aug 202116.8
2021usdCGCG 200-019Ia18:22:03.34+36:37:20.42 Aug 2021PS113 Aug 202116.828 Aug 202117.1
AT2021uwo?22:08:13.89-11:30:40.12 Aug 2021MASTER2 Aug 202117.12 Aug 202117.1
2021uqwAGC 311171II21:53:59.43+06:41:51.02 Aug 2021ZTF8 Aug 202117.18 Aug 202117.1
2021uuxII16:00:00.83+50:48:05.71 Aug 2021ZTF1 Aug 202117.91 Aug 202117.9
2021umhLEDA 2204848Ia02:22:50.03+42:43:29.11 Aug 2021ZTF12 Aug 202116.128 Aug 202116.7
AT2021uojESO 123-G9?07:22:51.80-62:01:31.61 Aug 2021Gaia1 Aug 202117.01 Aug 202117.0
2021upaFAIRALL 0166II16:43:00.18-68:56:55.31 Aug 2021ASAS-SN1 Aug 202117.61 Aug 202117.6
2021uktUGC 505IIn00:49:24.86-01:45:58.831 Jul 2021ZTF15 Aug 202115.627 Aug 202116.1
AT2021uku?19:30:33.58+12:09:05.931 Jul 2021GEOTS31 Jul 202116.631 Jul 202116.6
2021ulvIIn14:15:42.24+26:37:44.931 Jul 2021ZTF21 Aug 202117.921 Aug 202117.9
AT2021uzf?01:06:10.07+01:13:58.931 Jul 2021ATLAS31 Jul 202117.931 Jul 202117.9
AT2021vwn?23:02:42.01+44:42:55.931 Jul 2021ZTF31 Jul 202114.314 Aug 202117.1
AT2021vxaLEDA 127966?03:17:51.72-59:42:07.531 Jul 2021MASTER13 Aug 202116.813 Aug 202116.8
2021umdIa01:04:23.98-13:21:41.030 Jul 2021ZTF13 Aug 202117.813 Aug 202117.8
AT2021uih?00:16:24.92+55:36:53.030 Jul 2021Kumar30 Jul 202117.330 Jul 202117.3
AT2021ulzAM 2312-535?23:15:06.93-53:39:21.730 Jul 2021ASAS-SN30 Jul 202117.330 Jul 202117.3
2021ujxNGC 6816Ia19:44:02.03-28:24:28.030 Jul 2021ATLAS1 Sep 202117.21 Sep 202117.2
AT2021uul?22:19:41.71+65:49:27.929 Jul 2021ZTF29 Jul 202117.829 Jul 202117.8
AT2021uwj?16:34:46.61+32:18:43.228 Jul 2021ZTF28 Jul 202116.213 Aug 202117.7
2021uffMCG -6-48-10II21:57:08.89-38:14:52.628 Jul 2021ATLAS28 Jul 202117.428 Jul 202117.4
AT2021uhaESO 499-26?09:58:22.09-25:09:37.028 Jul 2021Gaia28 Jul 202114.828 Jul 202114.8
AT2021ugnUGC 11252?18:28:42.00+48:14:34.828 Jul 2021ZTF28 Jul 202117.728 Jul 202117.7
2021ucxCGCG 504-088Ia02:28:09.40+32:21:29.726 Jul 2021ATLAS14 Aug 202115.926 Aug 202116.2
AT2021urkM31EGN00:42:45.35+41:52:22.626 Jul 2021XOSS9 Aug 202116.89 Aug 202116.8
2021ucyMCG +2-8-8II02:48:10.90+13:42:59.326 Jul 2021ATLAS30 Aug 202117.530 Aug 202117.5
2021ucmLEDA 1409307Ia23:35:30.39+12:25:28.025 Jul 2021ATLAS3 Aug 202116.43 Aug 202116.4
2021ucgUGC 12188II22:47:37.66+39:52:59.425 Jul 2021ATLAS28 Aug 202117.028 Aug 202117.0
2021tywII-pec23:05:56.46+14:21:27.724 Jul 2021ZTF2 Aug 202116.527 Aug 202116.7
2021tyfUGC 9479II14:42:33.06+04:26:15.624 Jul 2021ZTF28 Jul 202117.519 Aug 202117.9
2021txrCGCG 514-048II22:30:50.30+36:33:48.223 Jul 2021ZTF2 Aug 202117.52 Aug 202117.5
2021twbLEDA 198252Ia00:47:07.79-25:39:43.220 Jul 2021ATLAS29 Jul 202117.829 Jul 202117.8
2021ttwLEDA 2273294Ib/c02:55:18.91+45:58:15.419 Jul 2021ATLAS14 Aug 202117.714 Aug 202117.7
AT2021tqb?00:50:56.44+53:51:52.418 Jul 2021GEOTS18 Jul 202114.830 Jul 202117.8
2021tiqMCG -2-57-24SN22:36:54.72-12:33:41.914 Jul 2021ZTF30 Jul 202117.130 Jul 202117.1
2021tkmIC 4441Ia14:31:41.60-43:24:51.714 Jul 2021ASAS-SN29 Jul 202112.827 Aug 202114.8
2021uthIIb03:29:02.93+09:17:26.614 Jul 2021ZTF3 Aug 202117.63 Aug 202117.6
2021tlmII21:59:27.44+33:10:39.08 Jul 2021ZTF29 Jul 202116.427 Aug 202117.1
2021suuESO 509-G51Ia13:32:42.98-23:41:42.68 Jul 2021ATLAS14 Jul 202116.512 Aug 202117.1
AT2021svy?13:09:21.82+30:55:20.48 Jul 2021ATLAS29 Jul 202117.529 Jul 202117.5
2021soeIa19:05:00.20+34:23:32.38 Jul 2021ZTF28 Jul 202115.914 Aug 202117.0
2021sosIa10:45:37.09-25:26:17.28 Jul 2021ASAS-SN17 Jul 202115.111 Aug 202115.5
2021smjNGC 4411bIa12:26:46.56+08:52:57.68 Jul 2021ATLAS25 Jul 202112.99 Aug 202113.6
2021skfNGC 4777Ia12:53:57.35-08:46:14.87 Jul 2021ATLAS19 Jul 202115.010 Aug 202116.1
2021slwIa13:32:42.92+32:26:35.27 Jul 2021ZTF28 Jul 202117.528 Jul 202117.5
2021sqeIa15:43:27.26+07:54:24.67 Jul 2021ZTF28 Jul 202117.528 Jul 202117.5
2021subNGC 7745Ia23:44:46.23+25:54:31.17 Jul 2021ZTF30 Jul 202117.530 Jul 202117.5
2021sgzIC 3095Ia12:16:56.35+23:57:31.16 Jul 2021ATLAS2 Aug 202116.77 Aug 202117.0
AT2021ryzCGCG 021-040Ia15:12:01.17-03:13:20.24 Jul 2021ZTF16 Jul 202116.312 Aug 202117.8
2021rhuNGC 7814Ia00:03:15.43+16:08:44.51 Jul 2021ZTF19 Jul 202112.210 Sep 202115.1
2021rgmIa18:37:04.07+33:49:14.029 Jun 2021ZTF10 Jul 202116.51 Aug 202117.1
2021qvrNGC 7678II23:28:26.65+22:25:11.922 Jun 2021ATLAS5 Jul 202115.010 Sep 202116.7
2021qqnNGC 6560Ia18:05:13.91+46:52:55.021 Jun 2021ZTF1 Jul 202116.11 Aug 202117.3
2021qquII03:37:51.93-14:58:33.720 Jun 2021ASAS-SN27 Aug 202115.017 Sep 202115.8
2021pitNGC 1448Ia03:44:30.21-44:37:57.310 Jun 2021ASAS-SN16 Jun 202112.331 Aug 202115.5
2021pfsNGC 5427Ia14:03:23.58-06:01:53.99 Jun 2021ZTF2 Jul 202113.729 Jul 202116.0
2021hizIC 3322AIa12:25:41.67+07:13:42.230 Mar 2021ZTF11 Apr 202113.38 Aug 202117.3



    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.