Solar flares on December 25, 2011
The most powerful solar flare in 24 hours
M4.0 (strong) flare - December 25 at 1:16 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-05 (Indianapolis)
List of solar flares for December 25, 2011
The total number of solar flares of class C and higher — 6 flares
C class — 4 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.5 | 21:13 | 21:27 | 21:36 | 1387 |
| C7.7 | 15:23 | 15:29 | 15:33 | 1387 |
| M4.0 | 13:11 | 13:16 | 13:20 | 1387 |
| C2.2 | 11:55 | 12:01 | 12:08 | — |
| C8.4 | 06:20 | 06:26 | 06:31 | 1387 |
| C5.5 | 03:49 | 03:55 | 04:01 | 1387 |