Sun flares
X-ray index
Diagram of the solar flare activity
X-ray emission of the Sun on Aug 20, 2011 and Aug 21, 2011 (GOES-15)
Solar flares on Aug 21, 2011
2 solar flares were observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C1.2 | 1272 | 23:10:00 | 23:16:00 | 23:26:00 |
| Flare of class C1.5 | 1272 | 18:15:00 | 18:40:00 | 18:46:00 |
Solar flares on Aug 20, 2011
1 solar flare was observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C2.9 | 1271 | 22:54:00 | 22:58:00 | 23:00:00 |