Solar flares on December 9, 2011
The most powerful solar flare in 24 hours
C3.1 (normal) flare - December 9 at 1:20 PM
Solar activity index
Value as of the end of the day on December 9, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 8, 2011 to December 9, 2011
Time zone — UTC+00 (London)
List of solar flares for December 9, 2011
The total number of solar flares of class C and higher — 1 flare
C class — 1 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.1 | 13:05 | 13:20 | 13:31 | 1374 |