Solar flares on December 27, 2011
The most powerful solar flare in 24 hours
C8.9 (normal) flare - December 27 at 12:22 AM
Solar activity index
Value as of the end of the day on December 27, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 26, 2011 to December 27, 2011
Time zone — UTC-04 (Moncton)
List of solar flares for December 27, 2011
The total number of solar flares of class C and higher — 11 flares
C class — 11 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.5 | 23:30 | 23:50 | 00:10 | 1389 |
| C2.1 | 21:54 | 22:08 | 22:16 | 1389 |
| C2.3 | 20:14 | 20:30 | 20:40 | 1387 |
| C6.7 | 17:46 | 18:26 | 18:49 | — |
| C1.7 | 15:32 | 15:36 | 15:40 | — |
| C2.5 | 14:31 | 14:36 | 14:43 | 1387 |
| C1.5 | 13:25 | 13:30 | 13:35 | — |
| C6.2 | 07:59 | 08:07 | 08:34 | 1387 |
| C4.0 | 05:17 | 05:23 | 05:26 | 1387 |
| C3.8 | 04:11 | 04:22 | 04:32 | 1387 |
| C8.9 | 00:11 | 00:22 | 00:31 | 1386 |