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Gaia21ala




Other surveys detections
None
Comments
~1 mag decline over 2 years in Gaia, WISE and GALEX source
ATels
None
AstroNotes
None

TNS ID
AT2021bby

RA - DEC
328.80958   33.15010
21:55:14.30   33:09:00.36
Galactic coords.
85.52044   -16.63097

Alerting date
2021-01-23 21:36:26
Julian date (TCB)
2459238.40
Alerting magnitude
19.68
Historic magnitude
18.68
Historic StdDev
0.15
Class
unknown
Publication date
Jan. 25, 2021, 6:35 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.
2014-11-04 14:37:58 2456966.11 18.61
2014-11-04 16:24:32 2456966.18 18.58
2014-11-25 20:32:12 2456987.36 18.56
2014-11-25 22:18:45 2456987.43 18.52
2015-02-10 21:20:28 2457064.39 18.55
2015-02-11 01:34:08 2457064.57 18.52
2015-02-11 07:34:22 2457064.82 18.56
2015-02-11 09:20:56 2457064.89 18.55
2015-02-11 15:21:10 2457065.14 18.59
2015-02-11 19:34:49 2457065.32 18.56
2015-02-11 21:21:23 2457065.39 18.58
2015-02-12 01:35:02 2457065.57 18.58
2015-02-12 07:35:16 2457065.82 18.55
2015-02-17 01:39:21 2457070.57 18.57
2015-02-17 07:39:35 2457070.82 18.55
2015-02-17 09:26:09 2457070.89 18.59
2015-02-17 13:39:48 2457071.07 18.58
2015-02-17 15:26:22 2457071.14 18.61
2015-02-18 13:40:43 2457072.07 18.55
2015-02-18 15:27:17 2457072.14 18.57
2015-04-21 07:36:20 2457133.82 18.60
2015-05-17 07:38:28 2457159.82 18.68
2015-05-17 09:25:02 2457159.89 18.67
2015-06-17 09:10:13 2457190.88 18.72
2015-06-17 13:23:54 2457191.06 18.69
2015-09-27 22:54:34 2457293.45 18.57
2015-09-28 00:41:08 2457293.53 18.56
2015-09-28 04:54:47 2457293.70 18.56
2015-10-02 00:44:32 2457297.53 18.54
2015-10-02 12:44:59 2457298.03 18.57
2015-11-15 03:41:21 2457341.65 18.54
2015-12-09 21:28:20 2457366.39 18.52
2016-01-07 15:09:46 2457395.13 18.47
2016-05-01 22:34:18 2457510.44 18.70
2016-05-02 02:47:59 2457510.62 18.69
2017-10-29 14:10:50 2458056.09 18.66
2017-10-29 15:57:24 2458056.16 18.60
2017-12-05 13:14:44 2458093.05 18.73
2018-01-06 20:34:22 2458125.36 18.70
2018-01-28 20:37:13 2458147.36 18.63
2018-01-29 00:50:52 2458147.54 18.66
2018-03-29 18:42:23 2458207.28 18.64
2018-03-29 20:28:58 2458207.35 18.66
2018-03-30 02:29:13 2458207.60 18.63
2018-03-30 06:42:53 2458207.78 18.65
2018-04-14 00:53:56 2458222.54 18.68
2018-04-14 02:40:31 2458222.61 18.63
2018-04-14 06:54:11 2458222.79 18.65
2018-05-25 14:19:18 2458264.10 18.67
2018-06-30 00:01:58 2458299.50 18.69
2018-07-19 18:05:01 2458319.25 18.63
2018-07-19 19:51:35 2458319.33 18.64
2018-10-25 15:05:16 2458417.13 18.52
2018-10-25 16:51:50 2458417.20 18.56
2019-01-22 19:51:24 2458506.33 18.59
2019-01-22 21:37:57 2458506.40 18.53
2019-01-23 01:51:37 2458506.58 18.60
2019-02-08 20:00:22 2458523.33 18.46
2019-02-08 21:46:56 2458523.41 18.54
2019-02-09 03:47:10 2458523.66 18.56
2019-04-09 21:39:52 2458583.40 18.70
2019-04-10 01:53:33 2458583.58 18.70
2019-05-01 14:02:41 2458605.09 18.74
2019-05-01 15:49:15 2458605.16 18.74
2019-06-06 03:29:29 2458640.65 18.75
2019-06-06 07:43:10 2458640.82 18.67
2019-07-14 08:46:30 2458678.87 18.75
2019-07-27 03:14:08 2458691.63 18.87
2019-07-27 05:00:43 2458691.71 18.81
2019-08-13 09:37:01 2458708.90 18.84
2019-08-13 11:23:36 2458708.97 18.79
2019-08-13 15:37:16 2458709.15 18.84
2019-08-13 17:23:51 2458709.22 18.82
2019-08-13 21:37:31 2458709.40 18.83
2019-10-14 05:39:21 2458770.74 18.95
2019-10-14 07:25:55 2458770.81 19.00
2019-10-14 11:39:34 2458770.99 18.97
2019-10-14 13:26:08 2458771.06 18.94
2019-11-04 18:11:40 2458792.26 18.96
2019-12-08 09:22:54 2458825.89 18.97
2020-01-13 09:30:54 2458861.90 19.03
2020-01-13 11:17:28 2458861.97 19.01
2020-01-27 21:52:41 2458876.41 19.02
2020-01-27 23:39:15 2458876.49 19.05
2020-05-02 21:55:55 2458972.41 19.12
2020-06-27 14:01:49 2459028.08 19.15
2020-10-26 03:03:18 2459148.63 19.41
2020-11-13 04:49:42 2459166.70 19.44
2020-12-17 02:20:31 2459200.60 19.54
2020-12-17 04:07:04 2459200.67 19.50
2021-01-23 21:36:26 2459238.40 19.68
2021-01-24 01:50:06 2459238.58 19.71
2021-01-24 03:36:39 2459238.65 19.67
2021-02-09 03:45:32 2459254.66 19.72
2021-02-09 09:45:46 2459254.91 19.71
2021-04-10 15:39:03 2459315.15 19.32
2021-04-10 19:52:43 2459315.33 19.55
2021-05-02 14:01:08 2459337.08 19.61
2021-05-02 15:47:43 2459337.16 19.70
2021-06-06 19:41:56 2459372.32 19.62
2021-07-15 08:44:25 2459410.86 19.49
2021-07-30 14:51:00 2459426.12 19.53
2021-07-30 19:04:41 2459426.29 19.45
2021-11-05 10:04:52 2459523.92 19.18
2021-11-26 21:58:24 2459545.42 19.07
2021-11-26 23:44:57 2459545.49 19.09
2021-12-28 03:28:26 2459576.64 19.01
2021-12-28 05:15:00 2459576.72 19.03
2022-02-12 22:48:53 2459623.45 19.01
2022-02-13 04:49:07 2459623.70 19.06
2022-02-13 09:02:47 2459623.88 19.04
2022-02-13 10:49:21 2459623.95 19.05
2022-02-13 21:03:14 2459624.38 19.02
2022-02-13 22:49:48 2459624.45 19.04
2022-02-14 03:03:28 2459624.63 19.05
2022-02-14 04:50:02 2459624.70 18.98
2022-02-14 09:03:41 2459624.88 19.03
2022-02-14 15:03:55 2459625.13 19.05
2022-02-14 21:04:08 2459625.38 19.00
2022-02-14 22:50:42 2459625.45 19.02
2022-02-15 03:04:22 2459625.63 19.00
2022-02-15 04:50:56 2459625.70 18.99
2022-02-15 09:04:35 2459625.88 19.02
2022-02-15 15:04:48 2459626.13 19.02
2022-02-15 21:05:02 2459626.38 18.98
2022-02-16 03:05:15 2459626.63 19.02
2022-02-16 09:05:28 2459626.88 19.01
2022-02-16 15:05:42 2459627.13 18.98
2022-02-16 16:52:16 2459627.20 19.02
2022-02-16 21:05:55 2459627.38 19.01
2022-02-17 04:52:43 2459627.70 19.05
2022-02-17 09:06:22 2459627.88 19.04
2022-02-17 10:52:56 2459627.95 18.99
2022-02-17 16:53:10 2459628.20 19.04
2022-02-17 21:06:49 2459628.38 18.98
2022-02-17 22:53:23 2459628.45 19.03
2022-02-18 03:07:03 2459628.63 19.03
2022-02-18 04:53:37 2459628.70 19.02
2022-02-18 09:07:17 2459628.88 19.00
2022-02-18 10:53:51 2459628.95 19.03
2022-02-18 15:07:31 2459629.13 19.01
2022-02-18 16:54:05 2459629.20 19.02
2022-02-18 21:07:45 2459629.38 19.02
2022-02-18 22:54:19 2459629.45 19.04
2022-02-19 04:54:33 2459629.70 19.02
2022-04-22 03:03:56 2459691.63 18.93
2022-04-22 04:50:30 2459691.70 18.95
2022-05-18 09:05:07 2459717.88 18.91
2022-05-18 10:51:42 2459717.95 18.92
2022-06-18 08:51:15 2459748.87 18.77
2022-07-29 13:55:09 2459790.08 18.82
2022-07-29 15:41:44 2459790.15 18.76
2022-08-09 15:49:16 2459801.16 18.75
2022-08-09 20:02:56 2459801.34 18.70



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