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Solar flares from active region 11865
C12
M4
X0
LargestM1.82013-10-15
Span9 days
Flares by day
1
2
1
1
1
8
1
1
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2013-10-09 | 06:08 | 06:13 | 13 | C1.0 | S20E64 | 11865 |
| 2013-10-10 | 16:56 | 16:59 | 9 | C1.6 | S20E54 | 11865 |
| 2013-10-10 | 17:46 | 17:52 | 16 | C1.3 | S20E52 | 11865 |
| 2013-10-11 | 07:01 | 07:25 | 44 | M1.5 | S21E44 | 11865 |
| 2013-10-13 | 00:12 | 00:43 | 53 | M1.7 | S22E17 | 11865 |
| 2013-10-14 | 12:56 | 13:15 | 40 | C8.0 | S21W01 | 11865 |
| 2013-10-15 | 03:23 | 03:33 | 25 | C1.9 | S22W09 | 11865 |
| 2013-10-15 | 05:04 | 05:07 | 6 | C9.5 | S22W11 | 11865 |
| 2013-10-15 | 08:13 | 08:16 | 5 | C2.8 | S22W14 | 11865 |
| 2013-10-15 | 08:26 | 08:38 | 22 | M1.8 | S22W13 | 11865 |
| 2013-10-15 | 14:14 | 14:21 | 15 | C2.2 | S20E52 | 11865 |
| 2013-10-15 | 14:37 | 14:57 | 32 | C4.4 | S20E52 | 11865 |
| 2013-10-15 | 15:22 | 15:36 | 27 | C6.6 | S20E52 | 11865 |
| 2013-10-15 | 23:31 | 23:36 | 10 | M1.3 | S23W20 | 11865 |
| 2013-10-16 | 14:26 | 14:32 | 14 | C8.9 | S23W29 | 11865 |
| 2013-10-17 | 22:18 | 22:24 | 14 | C1.6 | S22W49 | 11865 |
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 11865 produced 16 C+ flares between 2013-10-09 and 2013-10-17.