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Solar flares from active region 6757
C27
M9
X1
LargestX1.51991-08-02
Span11 days
Flares by day
2
2
2
1
6
2
8
5
2
5
2
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1991-07-30 | 20:45 | 21:06 | 47 | C4.4 | N21E43 | 6757 |
| 1991-07-30 | 22:08 | – | 7 | C2.6 | N22E43 | 6757 |
| 1991-07-31 | 16:54 | 17:00 | 16 | C2.5 | N22E36 | 6757 |
| 1991-07-31 | 22:48 | 22:51 | 26 | M1.7 | N23E31 | 6757 |
| 1991-08-01 | 14:47 | 14:49 | 10 | M2.4 | N25E20 | 6757 |
| 1991-08-01 | 18:26 | 18:26 | 34 | C7.5 | N24E21 | 6757 |
| 1991-08-02 | 03:07 | 03:16 | 52 | X1.5 | N25E15 | 6757 |
| 1991-08-03 | 01:21 | 01:23 | 8 | M2.9 | N23W02 | 6757 |
| 1991-08-03 | 03:25 | 04:07 | 65 | M1.4 | N17W05 | 6757 |
| 1991-08-03 | 11:50 | 11:55 | 20 | C3.2 | N21W05 | 6757 |
| 1991-08-03 | 18:57 | 18:59 | 39 | M1.6 | N21W13 | 6757 |
| 1991-08-03 | 20:11 | 20:40 | 66 | C7.7 | N25W09 | 6757 |
| 1991-08-03 | 22:26 | 22:34 | 29 | M7.4 | N23W11 | 6757 |
| 1991-08-04 | 17:53 | 17:59 | 15 | C8.9 | N20W29 | 6757 |
| 1991-08-04 | 18:09 | 18:13 | 105 | M1.7 | N24W21 | 6757 |
| 1991-08-05 | 00:27 | 00:32 | 115 | C3.7 | N23W25 | 6757 |
| 1991-08-05 | 02:59 | 03:17 | 45 | C2.0 | N23W26 | 6757 |
| 1991-08-05 | 05:24 | 05:29 | 52 | M1.2 | N23W27 | 6757 |
| 1991-08-05 | 05:50 | 05:54 | 19 | C2.6 | N22W28 | 6757 |
| 1991-08-05 | 09:49 | 09:51 | 56 | C1.4 | N23W31 | 6757 |
| 1991-08-05 | 13:55 | 14:02 | 17 | C1.9 | N19W39 | 6757 |
| 1991-08-05 | 15:23 | 15:24 | 5 | C3.6 | N25W27 | 6757 |
| 1991-08-05 | 22:53 | 22:57 | 13 | C2.4 | N23W34 | 6757 |
| 1991-08-06 | 00:42 | 00:45 | 42 | C3.0 | N23W37 | 6757 |
| 1991-08-06 | 04:36 | 04:41 | 84 | M1.6 | N20W37 | 6757 |
| 1991-08-06 | 11:16 | 11:17 | 41 | C1.6 | N20W44 | 6757 |
| 1991-08-06 | 19:27 | 19:29 | 9 | C2.5 | N23W45 | 6757 |
| 1991-08-06 | 22:38 | 22:38 | 13 | C1.9 | N19W50 | 6757 |
| 1991-08-07 | 02:14 | 02:15 | 9 | C1.3 | N19W51 | 6757 |
| 1991-08-07 | 11:50 | 11:51 | 9 | C3.1 | N24W54 | 6757 |
| 1991-08-08 | 04:01 | 04:06 | 13 | C2.5 | N21W63 | 6757 |
| 1991-08-08 | 04:54 | 04:56 | 4 | C1.9 | N21W67 | 6757 |
| 1991-08-08 | 05:57 | 06:03 | 37 | C1.5 | N19W66 | 6757 |
| 1991-08-08 | 06:17 | 06:21 | 7 | C5.4 | N21W67 | 6757 |
| 1991-08-08 | 08:50 | 08:58 | 18 | C6.3 | N23W65 | 6757 |
| 1991-08-09 | 01:48 | 01:51 | 13 | C2.1 | N21W81 | 6757 |
| 1991-08-09 | 10:34 | 10:35 | 6 | C1.5 | N20W83 | 6757 |
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 6757 produced 37 C+ flares between 1991-07-30 and 1991-08-09.