Sun flares
X-ray index
Diagram of the solar flare activity
X-ray emission of the Sun on Jan 20, 2011 and Jan 21, 2011 (GOES-15)
Solar flares on Jan 21, 2011
7 solar flares were observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C1.3 | 1149 | 20:14:00 | 20:31:00 | 20:39:00 |
| Flare of class C1.1 | 0 | 18:57:00 | 19:10:00 | 19:30:00 |
| Flare of class C2.2 | 1149 | 16:38:00 | 17:12:00 | 17:17:00 |
| Flare of class C1.1 | 1147 | 15:17:00 | 15:21:00 | 15:25:00 |
| Flare of class C1.4 | 1149 | 14:24:00 | 14:38:00 | 14:49:00 |
| Flare of class C1.0 | 1149 | 12:05:00 | 12:15:00 | 12:20:00 |
| Flare of class C3.3 | 1149 | 04:12:00 | 04:17:00 | 04:20:00 |
Solar flares on Jan 20, 2011
No solar flares of C, M and X-class were observed