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Gaia21dly




Other surveys detections
None
Comments
~1 mag slow decline in known QSO
ATels
None
AstroNotes
None

TNS ID
AT2019chc

RA - DEC
216.55959   27.49891
14:26:14.30   27:29:56.08
Galactic coords.
39.4254   68.97108

Alerting date
2021-07-25 07:10:35
Julian date (TCB)
2459420.80
Alerting magnitude
19.25
Historic magnitude
18.24
Historic StdDev
0.26
Class
QSO
Publication date
July 27, 2021, 7:53 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.
2015-01-15 17:03:50 2457038.21 18.35
2015-02-08 09:11:21 2457061.88 18.33
2015-02-08 10:57:55 2457061.96 18.30
2015-05-16 12:13:43 2457159.01 18.52
2015-05-16 14:00:17 2457159.08 18.51
2015-07-07 11:19:22 2457210.97 18.31
2015-09-02 04:57:03 2457267.71 18.16
2015-09-02 06:43:37 2457267.78 18.13
2015-11-09 06:45:14 2457335.78 18.55
2015-11-09 12:45:29 2457336.03 18.55
2015-11-09 18:45:45 2457336.28 18.54
2015-11-10 00:46:00 2457336.53 18.57
2015-11-10 06:46:15 2457336.78 18.56
2015-11-10 10:59:56 2457336.96 18.52
2015-11-10 12:46:30 2457337.03 18.57
2015-11-10 17:00:11 2457337.21 18.54
2015-11-10 18:46:46 2457337.28 18.57
2015-11-11 00:47:01 2457337.53 18.54
2015-11-11 12:47:32 2457338.03 18.57
2015-11-11 18:47:47 2457338.28 18.54
2016-01-29 16:15:54 2457417.18 18.55
2016-02-18 16:16:16 2457437.18 18.53
2016-05-25 07:11:07 2457533.80 18.54
2016-05-25 08:57:41 2457533.87 18.48
2016-06-10 01:15:16 2457549.55 18.77
2016-07-18 00:26:48 2457587.52 18.95
2016-09-12 06:06:43 2457643.75 18.95
2016-09-12 07:53:17 2457643.83 18.97
2016-09-12 12:06:56 2457644.00 18.93
2016-09-12 13:53:30 2457644.08 18.97
2016-11-15 07:51:48 2457707.83 18.63
2016-11-15 12:05:28 2457708.00 18.64
2016-11-15 13:52:03 2457708.08 18.65
2016-11-15 18:05:43 2457708.25 18.67
2016-12-02 00:16:19 2457724.51 18.52
2016-12-02 02:02:54 2457724.59 18.53
2017-01-07 13:39:22 2457761.07 18.68
2017-01-07 17:53:03 2457761.25 18.72
2017-02-27 14:27:37 2457812.10 18.84
2017-06-04 15:34:04 2457909.15 18.84
2017-06-04 17:20:37 2457909.22 18.79
2017-07-29 16:44:07 2457964.20 19.08
2017-09-12 14:30:02 2458009.10 19.08
2017-09-12 16:16:36 2458009.18 19.03
2017-09-12 20:30:15 2458009.35 19.06
2017-09-12 22:16:49 2458009.43 18.46
2017-09-13 02:30:28 2458009.60 19.07
2017-09-21 02:36:57 2458017.61 18.98
2017-09-21 04:23:30 2458017.68 18.96
2017-09-21 10:23:44 2458017.93 18.95
2017-09-21 16:23:57 2458018.18 19.00
2017-09-21 20:37:37 2458018.36 18.91
2017-09-21 22:24:11 2458018.43 18.94
2017-09-22 04:24:25 2458018.68 18.96
2017-11-25 20:38:23 2458083.36 18.70
2017-11-25 22:24:57 2458083.43 18.63
2017-11-26 02:38:38 2458083.61 18.79
2017-12-18 02:44:23 2458105.61 18.65
2018-01-18 10:11:18 2458136.92 18.46
2018-03-09 01:40:17 2458186.57 18.47
2018-03-09 03:26:52 2458186.64 18.49
2018-07-09 10:29:13 2458308.94 18.71
2018-07-09 12:15:47 2458309.01 18.70
2018-08-10 05:52:58 2458340.75 18.60
2018-12-06 21:49:34 2458459.41 18.39
2018-12-06 23:36:09 2458459.48 18.46
2019-01-01 21:46:18 2458485.41 18.34
2019-01-29 03:33:11 2458512.65 18.31
2019-01-29 05:19:46 2458512.72 18.28
2019-03-11 14:30:02 2458554.10 18.11
2019-03-11 16:16:37 2458554.18 18.11
2019-03-11 22:16:52 2458554.43 18.09
2019-03-17 14:35:23 2458560.11 18.14
2019-03-17 16:21:58 2458560.18 18.10
2019-03-17 20:35:38 2458560.36 18.09
2019-03-17 22:22:13 2458560.43 18.16
2019-05-08 08:35:45 2458611.86 18.24
2019-05-08 18:49:38 2458612.28 18.24
2019-05-08 20:36:12 2458612.36 18.23
2019-05-11 20:38:45 2458615.36 18.27
2019-05-12 00:52:25 2458615.54 18.25
2019-05-12 02:38:59 2458615.61 18.22
2019-05-12 08:39:12 2458615.86 18.27
2019-05-12 12:52:52 2458616.04 18.25
2019-08-02 07:43:30 2458697.82 18.27
2019-09-14 22:08:18 2458741.42 18.28
2019-09-14 23:54:52 2458741.50 18.28
2019-09-15 04:08:32 2458741.67 18.28
2019-09-20 16:13:59 2458747.18 18.23
2019-09-20 18:00:33 2458747.25 18.22
2019-11-10 13:37:42 2458798.07 18.45
2019-11-10 15:24:17 2458798.14 18.39
2019-11-10 19:37:57 2458798.32 18.41
2019-11-10 21:24:32 2458798.39 18.43
2019-11-11 01:38:12 2458798.57 18.46
2019-11-14 19:42:13 2458802.32 18.44
2019-11-14 21:28:47 2458802.39 18.42
2019-11-15 01:42:28 2458802.57 18.43
2019-11-15 03:29:02 2458802.65 18.40
2019-12-27 06:01:35 2458844.75 18.31
2019-12-27 10:15:16 2458844.93 18.34
2020-02-18 14:11:11 2458898.09 18.38
2020-06-17 04:25:18 2459017.68 18.80
2020-06-17 06:11:52 2459017.76 18.75
2020-08-10 22:05:24 2459072.42 18.92
2020-08-10 23:51:58 2459072.49 18.91
2020-12-07 09:48:35 2459190.91 18.90
2020-12-07 11:35:10 2459190.98 18.92
2021-01-02 15:44:17 2459217.16 18.93
2021-01-02 17:30:52 2459217.23 18.96
2021-01-29 15:31:55 2459244.15 18.87
2021-01-29 17:18:30 2459244.22 18.85
2021-03-12 14:27:56 2459286.10 18.89
2021-03-12 16:14:31 2459286.18 18.92
2021-03-12 20:28:11 2459286.35 18.92
2021-03-17 20:32:44 2459291.36 18.98
2021-03-17 22:19:18 2459291.43 18.93
2021-03-18 02:32:59 2459291.61 19.00
2021-05-08 06:46:10 2459342.78 19.24
2021-05-08 08:32:44 2459342.86 19.17
2021-05-08 12:46:24 2459343.03 19.11
2021-05-08 14:32:58 2459343.11 19.10
2021-05-08 18:46:38 2459343.28 19.11
2021-05-08 20:33:11 2459343.36 19.08
2021-05-13 06:50:22 2459347.78 19.16
2021-05-13 08:36:56 2459347.86 19.19
2021-05-13 12:50:36 2459348.04 19.17
2021-06-26 23:40:20 2459392.49 19.11
2021-07-25 07:10:35 2459420.80 19.25
2021-07-25 11:24:14 2459420.98 19.37
2021-08-22 11:14:49 2459448.97 19.13
2021-08-22 13:01:22 2459449.04 19.15
2021-12-18 10:59:39 2459566.96 18.99
2022-01-16 18:30:27 2459596.27 18.95
2022-02-09 04:38:42 2459619.69 18.93
2022-05-17 07:40:13 2459716.82 18.64
2022-05-17 09:26:46 2459716.89 18.63
2022-05-28 13:46:19 2459728.07 18.77
2022-05-28 15:32:53 2459728.15 18.77
2022-07-08 06:46:42 2459768.78 18.68
2022-07-08 08:33:16 2459768.86 18.69
2022-08-09 20:09:43 2459801.34 18.74
2022-08-10 00:23:22 2459801.52 18.73
2022-09-03 00:24:38 2459825.52 18.88
2022-09-03 02:11:12 2459825.59 18.87
2022-11-08 20:11:35 2459892.34 18.99
2022-11-09 00:25:16 2459892.52 18.97
2022-11-09 06:25:31 2459892.77 18.97
2022-11-09 08:12:05 2459892.84 19.01
2022-11-09 12:25:46 2459893.02 18.98
2022-11-09 14:12:20 2459893.09 19.02
2022-11-09 18:26:01 2459893.27 18.95
2022-11-09 20:12:35 2459893.34 19.00
2022-11-10 00:26:16 2459893.52 18.94
2022-11-10 06:26:31 2459893.77 18.99
2022-11-10 12:26:45 2459894.02 19.03
2022-11-10 18:27:00 2459894.27 19.00
2022-11-11 00:27:15 2459894.52 19.01
2022-11-11 06:27:29 2459894.77 19.03
2022-11-11 12:27:44 2459895.02 19.06
2022-11-11 18:27:58 2459895.27 19.03
2022-11-12 00:28:13 2459895.52 19.07
2022-11-12 06:28:28 2459895.77 19.05
2022-11-12 18:28:57 2459896.27 19.01
2022-11-12 20:15:31 2459896.34 19.03
2022-11-13 00:29:12 2459896.52 19.03
2022-11-13 02:15:46 2459896.59 19.06
2022-11-13 06:29:26 2459896.77 19.01
2022-11-13 12:29:41 2459897.02 18.97
2022-11-13 14:16:16 2459897.09 19.02
2022-11-13 20:16:31 2459897.34 19.04
2022-11-14 00:30:11 2459897.52 19.00
2022-11-14 02:16:46 2459897.59 19.01
2022-11-14 06:30:27 2459897.77 18.98
2022-11-14 08:17:01 2459897.85 19.05
2022-11-14 12:30:42 2459898.02 18.98
2022-12-29 12:10:26 2459943.01 19.02
2023-01-30 17:42:26 2459975.24 18.78
2023-02-19 07:29:46 2459994.81 18.68
2023-05-27 02:37:52 2460091.61 19.15
2023-05-27 04:24:26 2460091.68 19.09
2023-06-12 04:28:04 2460107.69 19.19
2023-08-26 09:12:10 2460182.88 18.51
2023-08-26 13:25:50 2460183.06 18.52
2023-08-26 15:12:23 2460183.13 18.52
2023-09-14 01:34:20 2460201.57 18.45
2023-09-14 03:20:54 2460201.64 18.47
2023-11-17 01:32:58 2460265.56 18.43
2023-11-17 03:19:32 2460265.64 18.41
2023-12-04 07:43:44 2460282.82 18.53
2024-01-09 09:07:02 2460318.88 18.51



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