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Solar flares from active region 6666
C11
M7
X0
LargestM5.51991-06-15
Span14 days
Flares by day
1
2
3
2
1
4
1
1
1
1
1
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1991-06-04 | 22:42 | 22:45 | 7 | C2.5 | S19E70 | 6666 |
| 1991-06-05 | 01:57 | 02:00 | 8 | M4.8 | S17E70 | 6666 |
| 1991-06-05 | 18:43 | 19:22 | 79 | M1.5 | S18E62 | 6666 |
| 1991-06-06 | 04:28 | 05:06 | 84 | M1.1 | S16E55 | 6666 |
| 1991-06-06 | 17:31 | 17:45 | 66 | M3.9 | S16E50 | 6666 |
| 1991-06-06 | 21:40 | 21:43 | 17 | C1.9 | S17E50 | 6666 |
| 1991-06-07 | 07:05 | 07:08 | 54 | M1.4 | S20E41 | 6666 |
| 1991-06-07 | 08:06 | 08:15 | 30 | C7.2 | S19E41 | 6666 |
| 1991-06-09 | 15:19 | 15:26 | 26 | C2.7 | S14E01 | 6666 |
| 1991-06-10 | 00:32 | 00:34 | 11 | C9.6 | S13W04 | 6666 |
| 1991-06-10 | 00:58 | 00:58 | 26 | C2.1 | S13W03 | 6666 |
| 1991-06-10 | 12:55 | 13:02 | 18 | C5.2 | S14W10 | 6666 |
| 1991-06-10 | 13:36 | 13:38 | 13 | C4.9 | S13W11 | 6666 |
| 1991-06-11 | 11:57 | 11:57 | 7 | M1.1 | S14W22 | 6666 |
| 1991-06-12 | 19:38 | 19:43 | 15 | C5.3 | S13W44 | 6666 |
| 1991-06-15 | 20:52 | 20:57 | 47 | M5.5 | S14W80 | 6666 |
| 1991-06-16 | 12:11 | 12:11 | 6 | C3.0 | S18W90 | 6666 |
| 1991-06-17 | 05:56 | 05:57 | 4 | C4.1 | S15W90 | 6666 |
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 6666 produced 18 C+ flares between 1991-06-04 and 1991-06-17.