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Solar flares from active region 6593
C11
M11
X0
LargestM9.81991-04-15
Span8 days
Flares by day
4
5
6
3
2
1
1
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1991-04-14 | 08:44 | 08:46 | 10 | C4.2 | S09E86 | 6593 |
| 1991-04-14 | 09:57 | 09:59 | 12 | C3.2 | S10E84 | 6593 |
| 1991-04-14 | 13:04 | 13:04 | 6 | M1.7 | S05E82 | 6593 |
| 1991-04-14 | 15:03 | 15:07 | 11 | C5.4 | S07E82 | 6593 |
| 1991-04-15 | 09:23 | 10:15 | 58 | M9.8 | S11E70 | 6593 |
| 1991-04-15 | 14:28 | 14:35 | 55 | M2.5 | S10E65 | 6593 |
| 1991-04-15 | 15:44 | 15:54 | 47 | M4.2 | S13E67 | 6593 |
| 1991-04-15 | 18:15 | 18:18 | 8 | C3.5 | S11E64 | 6593 |
| 1991-04-15 | 22:15 | 22:21 | 17 | C4.3 | S14E58 | 6593 |
| 1991-04-16 | 00:58 | 01:06 | 37 | M1.3 | S11E61 | 6593 |
| 1991-04-16 | 05:04 | 05:20 | 38 | M1.5 | S12E61 | 6593 |
| 1991-04-16 | 10:53 | 10:53 | 14 | C6.4 | S09E52 | 6593 |
| 1991-04-16 | 11:39 | 12:04 | 56 | M1.8 | S09E51 | 6593 |
| 1991-04-16 | 22:36 | 22:43 | 32 | M1.0 | S13E44 | 6593 |
| 1991-04-16 | 23:37 | 23:59 | 33 | M1.1 | S10E46 | 6593 |
| 1991-04-17 | 01:45 | 01:47 | 13 | M1.7 | S08E50 | 6593 |
| 1991-04-17 | 06:39 | 06:54 | 64 | M2.2 | S12E42 | 6593 |
| 1991-04-17 | 16:57 | 16:57 | 30 | C4.5 | S11E34 | 6593 |
| 1991-04-18 | 01:39 | 01:40 | 8 | C4.6 | S10E33 | 6593 |
| 1991-04-18 | 18:44 | 18:44 | 11 | C4.5 | S09E20 | 6593 |
| 1991-04-19 | 13:00 | 13:02 | 29 | C5.4 | S10E16 | 6593 |
| 1991-04-21 | 05:04 | 05:42 | 89 | C8.3 | S11W10 | 6593 |
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 6593 produced 22 C+ flares between 1991-04-14 and 1991-04-21.