Solar flares on December 29, 2011
The most powerful solar flare in 24 hours
M2.0 (strong) flare - December 29 at 9:51 PM
Solar activity index
Value as of the end of the day on December 29, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 28, 2011 to December 29, 2011
Time zone — UTC+00 (London)
List of solar flares for December 29, 2011
The total number of solar flares of class C and higher — 17 flares
C class — 15 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.0 | 23:41 | 23:45 | 23:52 | — |
| M2.0 | 21:43 | 21:51 | 21:59 | 1389 |
| C2.5 | 20:53 | 21:01 | 21:14 | 1389 |
| C2.3 | 20:25 | 20:32 | 20:39 | 1389 |
| C2.3 | 19:18 | 19:25 | 19:32 | 1389 |
| C1.5 | 18:13 | 18:17 | 18:23 | — |
| C2.9 | 17:27 | 17:32 | 17:46 | 1389 |
| C2.8 | 16:14 | 16:21 | 16:34 | 1389 |
| M1.9 | 13:40 | 13:50 | 14:01 | 1389 |
| C1.0 | 11:37 | 11:41 | 11:46 | — |
| C1.5 | 09:42 | 09:49 | 09:54 | 1389 |
| C5.4 | 08:40 | 08:48 | 08:51 | 1389 |
| C7.3 | 07:12 | 07:18 | 07:22 | 1389 |
| C3.0 | 06:15 | 06:21 | 06:28 | 1389 |
| C1.2 | 05:16 | 05:21 | 05:32 | — |
| C3.0 | 03:58 | 04:05 | 04:11 | 1389 |
| C1.2 | 03:16 | 03:19 | 03:26 | — |