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Solar flares from active region 3178
C9
M6
X0
LargestM3.61981-06-27
Span7 days
Flares by day
2
4
3
1
2
2
1
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1981-06-23 | 20:46 | 20:56 | 27 | M1.2 | N20E77 | 3178 |
| 1981-06-23 | 23:34 | 23:40 | 13 | C5.5 | – | 3178 |
| 1981-06-24 | 04:35 | 04:44 | 15 | C2.0 | N19E80 | 3178 |
| 1981-06-24 | 11:20 | 11:20 | 38 | M1.2 | N21E83 | 3178 |
| 1981-06-24 | 14:17 | 15:42 | 96 | C8.3 | N18E72 | 3178 |
| 1981-06-24 | 19:38 | 19:41 | 17 | C3.6 | N19E67 | 3178 |
| 1981-06-25 | 16:01 | 16:15 | 22 | C9.0 | N17E55 | 3178 |
| 1981-06-25 | 16:25 | 17:48 | 147 | M1.8 | N19E55 | 3178 |
| 1981-06-25 | 22:37 | 22:58 | 76 | C3.7 | N18E52 | 3178 |
| 1981-06-26 | 17:43 | 18:06 | 37 | M2.1 | N18E41 | 3178 |
| 1981-06-27 | 08:25 | 08:27 | 10 | M1.0 | N17E32 | 3178 |
| 1981-06-27 | 08:55 | 09:09 | 58 | M3.6 | – | 3178 |
| 1981-06-28 | 07:16 | 07:20 | 14 | C2.6 | N17E18 | 3178 |
| 1981-06-28 | 14:51 | 14:55 | 10 | C2.8 | N17E13 | 3178 |
| 1981-06-29 | 15:39 | 16:08 | 92 | C4.7 | – | 3178 |
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 3178 produced 15 C+ flares between 1981-06-23 and 1981-06-29.