Solar flares on December 9, 2013
The most powerful solar flare in 24 hours
C2.9 (normal) flare - December 9 at 1:30 PM
Solar activity index
Value as of the end of the day on December 9, 2013
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 8, 2013 to December 9, 2013
Time zone — UTC+02 (Helsinki)
List of solar flares for December 9, 2013
The total number of solar flares of class C and higher — 6 flares
C class — 6 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.9 | 20:03 | 20:08 | 20:10 | — |
| C2.6 | 18:51 | 18:56 | 19:02 | 1921 |
| C1.8 | 17:49 | 17:52 | 17:55 | 1920 |
| C2.3 | 14:33 | 15:21 | 15:52 | — |
| C2.9 | 13:15 | 13:30 | 13:48 | 1917 |
| C2.1 | 05:24 | 05:30 | 05:42 | — |