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Solar flares from active region 4077
C29
M2
X1
LargestX4.11983-02-03
Span10 days
Flares by day
5
8
2
4
3
7
1
1
1
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1983-01-31 | 01:06 | 01:06 | 14 | C0.9 | S19E36 | 4077 |
| 1983-01-31 | 04:11 | 04:17 | 16 | C1.0 | S18E34 | 4077 |
| 1983-01-31 | 04:55 | 04:56 | 6 | C0.9 | S16E32 | 4077 |
| 1983-01-31 | 18:53 | 19:03 | 48 | C1.9 | S16E23 | 4077 |
| 1983-01-31 | 21:56 | 21:58 | 8 | C1.0 | – | 4077 |
| 1983-02-01 | 01:50 | 01:51 | 9 | C1.2 | S16E24 | 4077 |
| 1983-02-01 | 02:03 | 02:15 | 23 | C2.0 | S18E23 | 4077 |
| 1983-02-01 | 06:48 | 07:37 | 88 | C5.6 | S20E17 | 4077 |
| 1983-02-01 | 12:20 | 12:20 | 44 | C2.1 | S18E19 | 4077 |
| 1983-02-01 | 13:33 | 13:36 | 5 | C2.1 | – | 4077 |
| 1983-02-01 | 16:33 | 17:07 | 53 | C1.0 | S19E13 | 4077 |
| 1983-02-01 | 18:08 | 18:09 | 65 | C2.0 | S17E25 | 4077 |
| 1983-02-01 | 18:33 | 19:03 | 119 | C5.1 | S19E13 | 4077 |
| 1983-02-02 | 09:54 | 09:54 | 4 | C1.0 | S17E07 | 4077 |
| 1983-02-02 | 20:21 | 20:22 | 12 | C1.0 | S16E01 | 4077 |
| 1983-02-03 | 01:26 | 01:29 | 15 | C1.1 | S18W06 | 4077 |
| 1983-02-03 | 02:57 | 03:19 | 33 | C1.3 | S19W07 | 4077 |
| 1983-02-03 | 05:43 | 06:19 | 179 | X4.1 | S19W08 | 4077 |
| 1983-02-03 | 18:39 | 18:39 | 83 | C2.7 | S17W09 | 4077 |
| 1983-02-04 | 01:33 | 01:36 | 11 | C1.4 | S16W15 | 4077 |
| 1983-02-04 | 02:55 | 03:09 | 47 | C1.4 | S21W20 | 4077 |
| 1983-02-04 | 09:45 | 09:49 | 27 | C1.9 | S17W21 | 4077 |
| 1983-02-05 | 01:45 | 01:48 | 18 | C1.4 | S20W30 | 4077 |
| 1983-02-05 | 04:35 | 04:37 | 25 | C3.1 | S21W33 | 4077 |
| 1983-02-05 | 06:49 | 07:01 | 86 | C6.4 | S19W36 | 4077 |
| 1983-02-05 | 09:28 | 09:33 | 49 | M1.7 | S19W35 | 4077 |
| 1983-02-05 | 13:03 | 13:37 | 55 | M1.2 | S21W38 | 4077 |
| 1983-02-05 | 16:40 | 16:44 | 29 | C1.7 | – | 4077 |
| 1983-02-05 | 19:11 | 19:17 | 8 | C2.2 | – | 4077 |
| 1983-02-06 | 05:11 | 05:15 | 34 | C3.2 | S21W44 | 4077 |
| 1983-02-08 | 21:50 | 21:53 | 130 | C7.5 | – | 4077 |
| 1983-02-09 | 00:01 | 00:01 | 102 | C6.7 | – | 4077 |
All times UTC. Until June 2017 classes are NOAA's reports of the time (GOES-15 and earlier included a 0.7 scaling factor); later classes come from calibrated GOES-16/18 data, so the same flare reads about 1.4× larger. Do not compare the two periods directly.
About this page
NOAA active region 4077 produced 32 C+ flares between 1983-01-31 and 1983-02-09.