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Gaia21ddb




Other surveys detections
None
Comments
Gaia, WISE and GALEX source brightens by 0.4 mag in 5 months
ATels
None
AstroNotes
None

TNS ID
AT2021sfm

RA - DEC
254.07335   36.12547
16:56:17.60   36:07:31.69
Galactic coords.
59.06704   37.95138

Alerting date
2021-07-04 18:00:46
Julian date (TCB)
2459400.25
Alerting magnitude
18.21
Historic magnitude
18.62
Historic StdDev
0.07
Class
unknown
Publication date
July 6, 2021, 7:56 a.m.
  • See here for an explanation of lightcurves.


Click and scroll down and select one row in the table below to display the corresponding spectrum.


Date JD Average Mag.
2014-10-29 09:20:08 2456959.89 18.64
2014-10-29 11:06:42 2456959.96 18.66
2015-01-06 21:00:04 2457029.38 18.59
2015-01-06 22:46:38 2457029.45 18.58
2015-02-10 14:38:10 2457064.11 18.51
2015-05-19 02:33:39 2457161.61 18.51
2015-06-02 18:52:54 2457176.29 18.48
2015-06-02 20:39:28 2457176.36 18.51
2015-07-15 13:21:49 2457219.06 18.50
2015-09-11 06:39:28 2457276.78 18.51
2015-10-17 00:14:21 2457312.51 18.56
2015-11-11 10:29:44 2457337.94 18.54
2015-11-11 12:16:18 2457338.01 18.51
2015-12-25 23:53:12 2457382.50 18.56
2016-01-21 10:05:25 2457408.92 18.58
2016-01-21 11:52:00 2457408.99 18.57
2016-02-22 03:46:17 2457440.66 18.61
2016-02-22 05:32:51 2457440.73 18.59
2016-03-28 21:03:22 2457476.38 18.61
2016-03-28 22:49:57 2457476.45 18.59
2016-04-17 10:50:50 2457495.95 18.59
2016-05-30 07:44:23 2457538.82 18.61
2016-05-30 09:30:57 2457538.90 18.57
2016-06-14 07:49:38 2457553.83 18.61
2016-06-14 09:36:12 2457553.90 18.54
2016-07-26 02:24:15 2457595.60 18.55
2016-08-20 00:29:13 2457620.52 18.60
2016-09-22 12:00:31 2457654.00 18.56
2016-10-31 01:20:34 2457692.56 18.56
2016-10-31 05:34:13 2457692.73 18.55
2016-11-24 05:39:49 2457716.74 18.60
2017-01-06 05:16:30 2457759.72 18.59
2017-01-06 07:03:05 2457759.79 18.58
2017-03-04 14:02:31 2457817.09 18.56
2017-04-11 05:24:06 2457854.73 18.56
2017-04-28 19:13:55 2457872.30 18.56
2017-06-11 04:04:31 2457915.67 18.60
2017-06-27 05:55:10 2457931.75 18.61
2017-08-06 21:04:05 2457972.38 18.59
2017-08-06 22:50:39 2457972.45 18.61
2017-09-03 04:37:03 2457999.69 18.63
2017-10-04 14:30:59 2458031.10 18.64
2017-10-04 16:17:33 2458031.18 18.66
2017-11-15 02:05:00 2458072.59 18.62
2017-11-15 03:51:34 2458072.66 18.63
2017-11-15 08:05:14 2458072.84 18.68
2017-12-08 14:12:15 2458096.09 18.65
2017-12-08 15:58:50 2458096.17 18.58
2018-01-18 07:48:43 2458136.83 18.62
2018-01-18 09:35:18 2458136.90 18.61
2018-02-17 13:33:10 2458167.06 18.65
2018-02-17 15:19:45 2458167.14 18.63
2018-04-24 06:21:42 2458232.77 18.61
2018-06-22 17:03:01 2458292.21 18.60
2018-07-10 17:05:30 2458310.21 18.55
2018-08-18 16:08:59 2458349.17 18.52
2018-08-18 17:55:33 2458349.25 18.54
2018-09-17 15:50:43 2458379.16 18.52
2018-11-29 11:01:11 2458451.96 18.68
2018-11-29 15:14:51 2458452.14 18.67
2018-11-29 17:01:26 2458452.21 18.62
2018-12-23 09:21:22 2458475.89 18.66
2018-12-23 11:07:56 2458475.96 18.62
2019-01-30 04:44:33 2458513.70 18.68
2019-03-27 08:27:23 2458569.85 18.60
2019-05-21 21:10:51 2458625.38 18.69
2019-05-22 01:24:31 2458625.56 18.62
2019-07-04 07:49:22 2458668.83 18.62
2019-08-03 10:07:15 2458698.92 18.60
2019-09-06 03:48:09 2458732.66 18.58
2019-09-06 05:34:43 2458732.73 18.59
2019-09-30 12:26:29 2458757.02 18.52
2019-11-09 14:52:14 2458797.12 18.55
2019-11-09 19:05:54 2458797.30 18.53
2019-11-24 01:27:59 2458811.56 18.52
2020-01-03 16:08:56 2458852.17 18.57
2020-01-03 17:55:30 2458852.25 18.56
2020-02-26 20:28:34 2458906.35 18.56
2020-03-30 02:06:27 2458938.59 18.52
2020-03-30 03:53:01 2458938.66 18.58
2020-04-26 15:01:42 2458966.13 18.56
2020-04-26 16:48:16 2458966.20 18.57
2020-06-12 06:38:27 2459012.78 18.54
2020-06-12 10:52:07 2459012.95 18.55
2020-06-12 12:38:41 2459013.03 18.56
2020-07-09 01:24:08 2459039.56 18.53
2020-07-09 05:37:47 2459039.73 18.53
2020-08-19 04:07:23 2459080.67 18.57
2020-08-19 05:53:56 2459080.75 18.58
2020-09-18 11:35:17 2459110.98 18.59
2020-10-17 15:38:26 2459140.15 18.53
2020-10-17 17:25:00 2459140.23 18.54
2020-11-30 09:13:44 2459183.88 18.55
2020-11-30 11:00:19 2459183.96 18.52
2020-12-24 03:20:00 2459207.64 18.54
2020-12-24 05:06:34 2459207.71 18.52
2021-01-30 20:56:58 2459245.37 18.57
2021-03-27 20:25:44 2459301.35 18.43
2021-05-07 13:16:29 2459342.05 18.35
2021-05-07 15:03:03 2459342.13 18.32
2021-05-22 13:22:11 2459357.06 18.28
2021-05-22 15:08:45 2459357.13 18.26
2021-07-04 18:00:46 2459400.25 18.21
2021-07-04 19:47:20 2459400.32 18.21
2021-07-25 00:00:04 2459420.50 18.24
2021-07-25 01:46:38 2459420.57 18.18
2021-08-31 05:13:29 2459457.72 18.24



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