Solar flares on December 22, 2009
The most powerful solar flare in 24 hours
C7.2 (normal) flare - December 22 at 5:56 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+01 (Brussels)
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 | 22:45 | 23:26 | 23:35 | — |
| C1.3 | 21:23 | 21:27 | 21:32 | — |
| C1.1 | 16:10 | 16:26 | 16:35 | — |
| C1.0 | 15:00 | 15:10 | 15:20 | — |
| C7.2 | 05:50 | 05:56 | 06:00 | 1036 |