Solar flares on December 30, 2011
The most powerful solar flare in 24 hours
M2.0 (strong) flare - December 30 at 3:21 AM
Solar activity index
Value as of the end of the day on December 30, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 29, 2011 to December 30, 2011
Time zone — UTC+05:30 (Ranchi)
List of solar flares for December 30, 2011
The total number of solar flares of class C and higher — 15 flares
C class — 13 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.8 | 23:46 | 23:53 | 00:12 | 1389 |
| C1.8 | 19:06 | 19:11 | 19:19 | 1389 |
| C1.3 | 17:22 | 17:50 | 18:03 | — |
| C8.4 | 15:57 | 16:02 | 16:07 | 1389 |
| C1.6 | 15:29 | 15:36 | 15:40 | 1389 |
| C3.4 | 13:49 | 13:55 | 14:00 | 1389 |
| C1.8 | 10:33 | 10:37 | 10:41 | — |
| C1.9 | 09:34 | 10:06 | 10:15 | — |
| C1.1 | 09:20 | 09:27 | 09:32 | — |
| M1.2 | 08:33 | 08:39 | 08:43 | 1389 |
| C1.0 | 05:11 | 05:15 | 05:22 | — |
| M2.0 | 03:13 | 03:21 | 03:29 | 1389 |
| C2.5 | 02:23 | 02:31 | 02:44 | 1389 |
| C2.3 | 01:55 | 02:02 | 02:09 | 1389 |
| C2.3 | 00:48 | 00:55 | 01:02 | 1389 |