Solar flares on December 4, 2011
The most powerful solar flare in 24 hours
C4.8 (normal) flare - December 4 at 11:15 AM
Solar activity index
Value as of the end of the day on December 4, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 3, 2011 to December 4, 2011
Time zone — UTC-05 (Augusta)
List of solar flares for December 4, 2011
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 |
|---|---|---|---|---|
| C1.2 | 23:47 | 23:52 | 23:57 | 1367 |
| C1.9 | 22:09 | 22:16 | 22:32 | 1366 |
| C1.3 | 14:37 | 14:49 | 15:03 | 1367 |
| C4.8 | 11:05 | 11:15 | 11:22 | 1362 |
| C1.2 | 03:30 | 03:37 | 03:45 | — |