Sun flares
X-ray index
Diagram of the solar flare activity
X-ray emission of the Sun on Apr 20, 2011 and Apr 21, 2011 (GOES-15)
Solar flares on Apr 21, 2011
4 solar flares were observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C4.5 | 1195 | 21:51:00 | 22:07:00 | 22:39:00 |
| Flare of class C4.9 | 1195 | 14:37:00 | 14:51:00 | 15:00:00 |
| Flare of class C8.5 | 1195 | 09:38:00 | 09:48:00 | 09:58:00 |
| Flare of class C1.0 | 1195 | 08:31:00 | 08:38:00 | 08:50:00 |
Solar flares on Apr 20, 2011
3 solar flares were observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C4.0 | 1195 | 19:30:00 | 19:39:00 | 19:49:00 |
| Flare of class C1.5 | 0 | 17:38:00 | 18:36:00 | 19:06:00 |
| Flare of class C1.0 | 1195 | 03:46:00 | 04:31:00 | 04:49:00 |