Sun flares
X-ray index
Diagram of the solar flare activity
X-ray emission of the Sun on Dec 20, 2021 and Dec 21, 2021 (GOES-16)
Solar flares on Dec 21, 2021
13 solar flares were observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C4.9 | 0 | 22:29:00 | 22:37:00 | 23:08:00 |
| Flare of class C3.9 | 0 | 20:36:00 | 20:48:00 | 21:00:00 |
| Flare of class C4.9 | 2909 | 19:02:00 | 19:23:00 | 19:53:00 |
| Flare of class C4.9 | 2908 | 17:35:00 | 17:50:00 | 18:04:00 |
| Flare of class C2.0 | 2916 | 15:44:00 | 15:53:00 | 15:58:00 |
| Flare of class C1.0 | 2908 | 13:45:00 | 13:52:00 | 14:00:00 |
| Flare of class M1.4 | 2916 | 11:31:00 | 11:44:00 | 11:49:00 |
| Flare of class M1.1 | 2916 | 07:43:00 | 07:50:00 | 07:57:00 |
| Flare of class C4.9 | 2908 | 07:06:00 | 07:22:00 | 07:34:00 |
| Flare of class C4.0 | 2908 | 05:58:00 | 06:10:00 | 06:19:00 |
| Flare of class C3.3 | 2908 | 04:48:00 | 05:00:00 | 05:09:00 |
| Flare of class C2.8 | 2908 | 03:40:00 | 03:44:00 | 03:52:00 |
| Flare of class C5.5 | 2907 | 01:44:00 | 01:57:00 | 02:12:00 |
Solar flares on Dec 20, 2021
16 solar flares were observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C1.1 | 0 | 22:47:00 | 22:54:00 | 23:04:00 |
| Flare of class C1.6 | 0 | 20:45:00 | 20:49:00 | 20:55:00 |
| Flare of class C1.4 | 0 | 20:23:00 | 20:32:00 | 20:41:00 |
| Flare of class C1.5 | 0 | 17:32:00 | 17:35:00 | 17:39:00 |
| Flare of class C1.4 | 0 | 17:15:00 | 17:28:00 | 17:32:00 |
| Flare of class C1.0 | 2907 | 16:34:00 | 16:42:00 | 17:02:00 |
| Flare of class C1.4 | 2907 | 15:57:00 | 16:02:00 | 16:06:00 |
| Flare of class C1.4 | 2907 | 13:48:00 | 13:54:00 | 13:59:00 |
| Flare of class M1.8 | 2908 | 11:12:00 | 11:36:00 | 11:55:00 |
| Flare of class C2.9 | 2907 | 10:37:00 | 10:46:00 | 10:50:00 |
| Flare of class C1.1 | 2907 | 09:19:00 | 09:21:00 | 09:25:00 |
| Flare of class C1.2 | 2907 | 08:43:00 | 08:51:00 | 08:57:00 |
| Flare of class C1.3 | 2907 | 06:33:00 | 06:40:00 | 06:44:00 |
| Flare of class C1.5 | 2908 | 04:29:00 | 04:37:00 | 04:44:00 |
| Flare of class C4.4 | 2909 | 03:08:00 | 03:21:00 | 03:27:00 |
| Flare of class C1.6 | 2908 | 00:17:00 | 00:34:00 | 00:53:00 |