Solar flares on December 22, 2009
The most powerful solar flare in 24 hours
C7.2 (normal) flare - December 22 at 4:56 AM
Solar activity index
Value as of the end of the day on December 22, 2009
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 21, 2009 to December 22, 2009
Time zone — UTC+00 (London)
List of solar flares for December 22, 2009
The total number of solar flares of class C and higher — 5 flares
C class — 5 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.0 | 21:45 | 22:26 | 22:35 | — |
| C1.3 | 20:23 | 20:27 | 20:32 | — |
| C1.1 | 15:10 | 15:26 | 15:35 | — |
| C1.0 | 14:00 | 14:10 | 14:20 | — |
| C7.2 | 04:50 | 04:56 | 05:00 | 1036 |