Sun flares
X-ray index
Diagram of the solar flare activity
X-ray emission of the Sun on Feb 20, 2012 and Feb 21, 2012 (GOES-15)
Solar flares on Feb 21, 2012
1 solar flare was observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C1.0 | 1422 | 11:42:00 | 11:48:00 | 11:55:00 |
Solar flares on Feb 20, 2012
3 solar flares were observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C1.1 | 1422 | 11:20:00 | 11:27:00 | 11:32:00 |
| Flare of class C4.1 | 1421 | 04:41:00 | 05:09:00 | 05:35:00 |
| Flare of class C1.1 | 1422 | 03:39:00 | 03:46:00 | 03:52:00 |