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Solar flares from active region 2281
C9
M4
X0
LargestM0.41980-02-11
Span8 days
Flares by day
4
5
1
1
2
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1980-02-10 | 04:29 | 04:30 | 17 | C0.5 | N25E85 | 2281 |
| 1980-02-10 | 18:52 | 18:57 | 25 | C0.6 | N10E76 | 2281 |
| 1980-02-10 | 20:21 | 20:28 | 8 | M0.1 | N13E79 | 2281 |
| 1980-02-10 | 23:29 | 23:31 | 33 | M0.1 | N11E72 | 2281 |
| 1980-02-11 | 07:18 | 07:22 | 37 | C0.7 | N08E76 | 2281 |
| 1980-02-11 | 16:38 | 16:43 | 45 | M0.1 | N10E66 | 2281 |
| 1980-02-11 | 20:37 | 20:38 | 20 | M0.4 | N13E62 | 2281 |
| 1980-02-11 | 21:20 | 21:28 | 33 | C0.4 | N10E62 | 2281 |
| 1980-02-11 | 23:29 | 23:31 | 33 | C0.2 | N11E72 | 2281 |
| 1980-02-12 | 06:04 | 06:07 | 26 | C0.6 | N05E68 | 2281 |
| 1980-02-13 | 04:18 | 04:20 | 15 | C0.6 | N15E56 | 2281 |
| 1980-02-17 | 03:10 | 03:18 | 23 | C0.1 | N08W07 | 2281 |
| 1980-02-17 | 08:43 | 08:45 | 15 | C0.2 | N08W05 | 2281 |
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 2281 produced 13 C+ flares between 1980-02-10 and 1980-02-17.