Home › Flare history › Region ranking
Solar flares from active region 11389
C25
M5
X0
LargestM2.42011-12-31
Span10 days
Flares by day
5
12
8
2
1
1
1
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2011-12-28 | 01:54 | 02:08 | 22 | C2.1 | – | 11389 |
| 2011-12-28 | 03:30 | 03:50 | 40 | C4.5 | – | 11389 |
| 2011-12-28 | 05:19 | 05:28 | 16 | C2.6 | – | 11389 |
| 2011-12-28 | 14:17 | 14:25 | 11 | C7.2 | – | 11389 |
| 2011-12-28 | 21:21 | 21:29 | 15 | C6.2 | – | 11389 |
| 2011-12-29 | 03:58 | 04:05 | 13 | C3.0 | – | 11389 |
| 2011-12-29 | 06:15 | 06:21 | 13 | C3.0 | – | 11389 |
| 2011-12-29 | 07:12 | 07:18 | 10 | C7.3 | – | 11389 |
| 2011-12-29 | 08:40 | 08:48 | 11 | C5.4 | – | 11389 |
| 2011-12-29 | 09:42 | 09:49 | 12 | C1.5 | – | 11389 |
| 2011-12-29 | 13:40 | 13:50 | 21 | M1.9 | – | 11389 |
| 2011-12-29 | 16:14 | 16:21 | 20 | C2.8 | – | 11389 |
| 2011-12-29 | 17:27 | 17:32 | 19 | C2.9 | – | 11389 |
| 2011-12-29 | 19:18 | 19:25 | 14 | C2.3 | – | 11389 |
| 2011-12-29 | 20:25 | 20:32 | 14 | C2.3 | – | 11389 |
| 2011-12-29 | 20:53 | 21:01 | 21 | C2.5 | – | 11389 |
| 2011-12-29 | 21:43 | 21:51 | 16 | M2.0 | – | 11389 |
| 2011-12-30 | 03:03 | 03:09 | 10 | M1.2 | – | 11389 |
| 2011-12-30 | 08:19 | 08:25 | 11 | C3.4 | – | 11389 |
| 2011-12-30 | 09:59 | 10:06 | 11 | C1.6 | – | 11389 |
| 2011-12-30 | 10:27 | 10:32 | 10 | C8.4 | – | 11389 |
| 2011-12-30 | 13:36 | 13:41 | 13 | C1.8 | – | 11389 |
| 2011-12-30 | 18:16 | 18:23 | 26 | C1.8 | – | 11389 |
| 2011-12-30 | 20:57 | 21:09 | 23 | C3.9 | – | 11389 |
| 2011-12-30 | 23:28 | 23:33 | 10 | C1.6 | – | 11389 |
| 2011-12-31 | 13:09 | 13:15 | 10 | M2.4 | – | 11389 |
| 2011-12-31 | 16:16 | 16:26 | 18 | M1.5 | – | 11389 |
| 2012-01-01 | 07:24 | 07:34 | 20 | C3.2 | S26E34 | 11389 |
| 2012-01-02 | 05:23 | 05:28 | 11 | C1.6 | S22E20 | 11389 |
| 2012-01-06 | 06:04 | 06:08 | 7 | C1.4 | S19W41 | 11389 |
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 11389 produced 30 C+ flares between 2011-12-28 and 2012-01-06.