Sun flares
X-ray index
Diagram of the solar flare activity
X-ray emission of the Sun on Apr 20, 2013 and Apr 21, 2013 (GOES-15)
Solar flares on Apr 21, 2013
13 solar flares were observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C2.7 | 1723 | 19:59:00 | 20:15:00 | 20:32:00 |
| Flare of class C4.5 | 1726 | 18:35:00 | 18:39:00 | 18:42:00 |
| Flare of class C2.9 | 1726 | 16:00:00 | 16:03:00 | 16:06:00 |
| Flare of class C2.2 | 1726 | 14:16:00 | 14:20:00 | 14:23:00 |
| Flare of class C1.0 | 1726 | 11:38:00 | 12:03:00 | 12:09:00 |
| Flare of class C1.0 | 1726 | 10:52:00 | 10:55:00 | 10:57:00 |
| Flare of class C1.8 | 1726 | 10:21:00 | 10:24:00 | 10:26:00 |
| Flare of class C2.5 | 1726 | 09:20:00 | 09:23:00 | 09:27:00 |
| Flare of class C1.3 | 1726 | 07:30:00 | 07:34:00 | 07:40:00 |
| Flare of class C2.7 | 1726 | 05:57:00 | 06:00:00 | 06:02:00 |
| Flare of class C1.4 | 1726 | 05:04:00 | 05:14:00 | 05:18:00 |
| Flare of class C1.0 | 1726 | 02:56:00 | 03:00:00 | 03:02:00 |
| Flare of class C3.6 | 1726 | 01:02:00 | 01:09:00 | 01:16:00 |
Solar flares on Apr 20, 2013
8 solar flares were observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C1.3 | 1726 | 22:46:00 | 22:52:00 | 22:59:00 |
| Flare of class C1.1 | 1726 | 22:24:00 | 22:29:00 | 22:33:00 |
| Flare of class C1.1 | 1726 | 22:09:00 | 22:13:00 | 22:18:00 |
| Flare of class C1.0 | 1726 | 17:08:00 | 17:16:00 | 17:24:00 |
| Flare of class C1.4 | 1726 | 07:54:00 | 08:02:00 | 08:10:00 |
| Flare of class C1.1 | 1726 | 03:27:00 | 03:48:00 | 04:02:00 |
| Flare of class C1.4 | 1726 | 02:26:00 | 02:31:00 | 02:33:00 |
| Flare of class C1.5 | 1726 | 00:22:00 | 00:36:00 | 00:38:00 |