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Gaia21asf




Other surveys detections
None
Comments
0.5 mag flare on a red star
ATels
None
AstroNotes
None

TNS ID
AT2021cos

RA - DEC
84.44863   -3.78905
05:37:47.67   -03:47:20.58
Galactic coords.
207.8085   -18.09553

Alerting date
2021-02-09 12:15:34
Julian date (TCB)
2459255.01
Alerting magnitude
18.57
Historic magnitude
19.09
Historic StdDev
0.08
Class
unknown
Publication date
Feb. 10, 2021, 9:39 p.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.
2015-02-19 07:43:21 2457072.82 19.13
2015-03-20 11:35:19 2457101.98 19.17
2015-03-20 13:21:53 2457102.06 19.13
2015-10-10 01:00:46 2457305.54 18.92
2015-10-10 02:47:21 2457305.62 18.89
2015-10-30 20:54:09 2457326.37 19.10
2016-03-01 02:52:05 2457448.62 19.10
2016-04-03 02:16:38 2457481.59 19.11
2016-07-29 09:00:57 2457598.88 19.16
2016-07-29 10:47:31 2457598.95 19.11
2016-08-10 21:09:17 2457611.38 19.13
2016-10-25 20:05:32 2457687.34 19.13
2016-10-25 21:52:07 2457687.41 19.15
2016-11-07 04:01:53 2457699.67 19.04
2016-11-07 10:02:08 2457699.92 19.00
2016-11-07 14:15:49 2457700.09 19.05
2017-01-21 20:39:54 2457775.36 19.16
2017-01-22 02:40:07 2457775.61 19.06
2017-02-02 04:33:54 2457786.69 19.14
2017-02-02 08:47:32 2457786.87 19.09
2017-02-02 10:34:06 2457786.94 19.16
2017-03-11 23:22:54 2457824.47 19.09
2017-04-17 22:33:59 2457861.44 19.13
2017-04-18 02:47:37 2457861.62 19.22
2017-08-07 17:25:02 2457973.23 18.96
2017-09-29 00:49:25 2458025.53 19.11
2017-09-29 05:03:06 2458025.71 19.11
2018-03-22 18:30:33 2458200.27 19.16
2018-05-04 23:31:15 2458243.48 19.11
2018-05-05 03:44:55 2458243.66 19.09
2018-05-05 05:31:29 2458243.73 19.03
2018-05-05 09:45:08 2458243.91 19.10
2018-05-05 11:31:42 2458243.98 19.10
2018-05-05 15:45:21 2458244.16 19.09
2018-05-05 21:45:34 2458244.41 19.06
2018-05-06 03:45:47 2458244.66 19.13
2018-05-06 09:46:00 2458244.91 19.11
2018-05-06 11:32:34 2458244.98 19.14
2018-05-06 15:46:13 2458245.16 19.17
2018-05-06 17:32:47 2458245.23 19.11
2018-05-06 21:46:26 2458245.41 19.10
2018-05-07 03:46:39 2458245.66 19.14
2018-05-07 05:33:13 2458245.73 19.13
2018-05-07 09:46:52 2458245.91 19.13
2018-05-07 11:33:26 2458245.98 19.14
2018-05-07 17:33:39 2458246.23 19.12
2018-08-17 18:30:12 2458348.27 18.98
2018-08-17 20:16:47 2458348.34 19.03
2018-09-10 00:29:00 2458371.52 18.80
2018-09-10 02:15:35 2458371.59 18.83
2018-10-10 02:00:57 2458401.58 19.01
2019-02-09 00:16:47 2458523.51 19.06
2019-02-09 02:03:20 2458523.59 19.16
2019-03-06 06:08:40 2458548.76 19.10
2019-04-02 11:50:47 2458575.99 19.19
2019-04-02 13:37:21 2458576.07 19.18
2019-08-13 23:21:17 2458709.47 19.15
2019-09-09 08:06:03 2458735.84 19.12
2019-10-06 19:28:20 2458763.31 19.15
2020-02-24 16:14:41 2458904.18 19.18
2020-02-24 18:01:15 2458904.25 19.13
2020-03-22 19:03:30 2458931.29 19.11
2020-04-17 13:54:02 2458957.08 19.11
2020-08-18 06:28:50 2459079.77 18.98
2020-09-10 20:13:19 2459103.34 19.12
2020-10-10 13:59:58 2459133.08 19.11
2021-02-09 12:15:34 2459255.01 18.57
2021-02-09 14:02:07 2459255.08 18.46
2021-03-07 00:06:09 2459280.50 18.66
2021-03-07 01:52:43 2459280.58 18.70
2021-04-03 01:35:53 2459307.57 19.01
2021-08-28 19:36:39 2459455.32 18.88
2021-08-28 21:23:14 2459455.39 18.90



2015 - Institute of Astronomy, University of Cambridge, UK - Privacy policy