Solar flares on December 25, 2011
The most powerful solar flare in 24 hours
M4.0 (strong) flare - December 25 at 6:16 PM
Solar activity index
Value as of the end of the day on December 25, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 24, 2011 to December 25, 2011
Time zone — UTC+00
List of solar flares for December 25, 2011
The total number of solar flares of class C and higher — 6 flares
C class — 5 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C7.7 | 20:23 | 20:29 | 20:33 | 1387 |
| M4.0 | 18:11 | 18:16 | 18:20 | 1387 |
| C2.2 | 16:55 | 17:01 | 17:08 | — |
| C8.4 | 11:20 | 11:26 | 11:31 | 1387 |
| C5.5 | 08:49 | 08:55 | 09:01 | 1387 |
| C1.6 | 04:47 | 04:52 | 04:55 | 1387 |