Sun flares
X-ray index
Diagram of the solar flare activity
X-ray emission of the Sun on Sep 20, 2011 and Sep 21, 2011 (GOES-15)
Solar flares on Sep 21, 2011
10 solar flares were observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C2.0 | 1295 | 20:31:00 | 20:36:00 | 20:40:00 |
| Flare of class C2.1 | 0 | 16:47:00 | 16:49:00 | 16:51:00 |
| Flare of class C2.3 | 0 | 16:13:00 | 16:16:00 | 16:20:00 |
| Flare of class C2.8 | 1295 | 15:21:00 | 15:26:00 | 15:30:00 |
| Flare of class C2.7 | 1295 | 14:37:00 | 14:38:00 | 14:41:00 |
| Flare of class C2.6 | 1295 | 14:21:00 | 14:23:00 | 14:26:00 |
| Flare of class M1.8 | 1302 | 12:04:00 | 12:23:00 | 12:45:00 |
| Flare of class C3.9 | 1301 | 11:17:00 | 11:24:00 | 11:28:00 |
| Flare of class C1.9 | 1295 | 07:37:00 | 07:41:00 | 07:47:00 |
| Flare of class C2.7 | 1301 | 00:55:00 | 01:07:00 | 01:14:00 |
Solar flares on Sep 20, 2011
11 solar flares were observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C3.0 | 1295 | 21:38:00 | 21:42:00 | 21:46:00 |
| Flare of class C2.7 | 1295 | 19:23:00 | 20:00:00 | 20:14:00 |
| Flare of class C1.6 | 1295 | 17:35:00 | 17:42:00 | 17:50:00 |
| Flare of class C1.5 | 0 | 15:45:00 | 16:33:00 | 16:57:00 |
| Flare of class C2.5 | 1301 | 12:44:00 | 13:53:00 | 14:22:00 |
| Flare of class C1.7 | 1301 | 12:28:00 | 12:34:00 | 12:38:00 |
| Flare of class C1.7 | 0 | 12:15:00 | 12:19:00 | 12:26:00 |
| Flare of class C1.6 | 1296 | 11:48:00 | 11:52:00 | 11:56:00 |
| Flare of class C2.0 | 1301 | 06:44:00 | 06:56:00 | 07:00:00 |
| Flare of class C9.5 | 1296 | 05:00:00 | 05:13:00 | 05:17:00 |
| Flare of class C1.4 | 1296 | 00:15:00 | 00:19:00 | 00:23:00 |