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Solar flares from active region 2941
C5
M4
X2
LargestX2.41981-02-20
Span10 days
Flares by day
1
2
1
2
1
2
2
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1981-02-13 | 04:08 | 04:18 | 18 | M1.2 | – | 2941 |
| 1981-02-16 | 14:29 | 14:32 | 13 | C2.1 | – | 2941 |
| 1981-02-16 | 17:05 | 17:36 | 82 | C7.4 | N20W03 | 2941 |
| 1981-02-17 | 18:12 | 21:50 | 330 | X1.0 | N20W20 | 2941 |
| 1981-02-18 | 06:10 | 06:12 | 23 | C8.4 | N18W25 | 2941 |
| 1981-02-18 | 16:40 | 16:43 | 4 | M1.1 | N19W32 | 2941 |
| 1981-02-19 | 01:40 | 03:12 | 144 | M2.0 | N18W36 | 2941 |
| 1981-02-20 | 00:32 | 00:33 | 8 | C5.7 | N19W49 | 2941 |
| 1981-02-20 | 06:40 | 06:43 | 67 | X2.4 | N19W49 | 2941 |
| 1981-02-22 | 02:47 | 02:55 | 16 | M2.0 | N17W73 | 2941 |
| 1981-02-22 | 21:16 | 21:20 | 14 | C3.3 | N16W90 | 2941 |
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 2941 produced 11 C+ flares between 1981-02-13 and 1981-02-22.