Solar flares on December 12, 2001
The most powerful solar flare in 24 hours
M5.6 (strong) flare - December 12 at 10:00 PM
Solar activity index
Value as of the end of the day on December 12, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 11, 2001 to December 12, 2001
Time zone — UTC+00
List of solar flares for December 12, 2001
The total number of solar flares of class C and higher — 10 flares
C class — 7 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M4.8 | 23:13 | 23:22 | 23:28 | 9727 |
| M5.6 | 21:41 | 22:00 | 22:18 | 9727 |
| C9.3 | 20:20 | 20:24 | 20:28 | 9727 |
| M3.0 | 19:00 | 19:11 | 19:18 | 9733 |
| C4.4 | 14:15 | 14:29 | 14:39 | — |
| C4.8 | 12:24 | 12:28 | 12:31 | 9733 |
| C2.6 | 11:41 | 11:45 | 11:49 | — |
| C3.2 | 08:45 | 08:53 | 08:59 | 9727 |
| C5.6 | 04:48 | 04:56 | 05:02 | 9736 |
| C3.4 | 03:36 | 03:50 | 04:04 | 9727 |