Sun flares
X-ray index
Diagram of the solar flare activity
X-ray emission of the Sun on Feb 20, 2025 and Feb 21, 2025 (GOES-16)
Solar flares on Feb 21, 2025
8 solar flares were observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C4.8 | 4000 | 22:39:00 | 22:48:00 | 22:53:00 |
| Flare of class C3.9 | 3998 | 19:42:00 | 19:53:00 | 20:02:00 |
| Flare of class C3.6 | 3990 | 18:50:00 | 18:59:00 | 19:05:00 |
| Flare of class C7.6 | 3996 | 15:52:00 | 15:59:00 | 16:03:00 |
| Flare of class M1.4 | 4000 | 14:31:00 | 14:35:00 | 14:39:00 |
| Flare of class M3.3 | 4000 | 12:05:00 | 12:15:00 | 12:19:00 |
| Flare of class C5.8 | 3990 | 11:12:00 | 11:19:00 | 11:25:00 |
| Flare of class C4.4 | 3998 | 07:56:00 | 08:10:00 | 08:24:00 |
Solar flares on Feb 20, 2025
6 solar flares were observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C2.2 | 3998 | 22:11:00 | 22:20:00 | 22:28:00 |
| Flare of class C4.9 | 3996 | 14:53:00 | 15:01:00 | 15:05:00 |
| Flare of class C1.9 | 3996 | 14:01:00 | 14:08:00 | 14:13:00 |
| Flare of class C1.8 | 3996 | 08:34:00 | 08:49:00 | 09:03:00 |
| Flare of class C1.5 | 3996 | 06:11:00 | 06:17:00 | 06:23:00 |
| Flare of class C1.5 | 3990 | 02:36:00 | 02:44:00 | 02:55:00 |