Sun flares
X-ray index
Diagram of the solar flare activity
X-ray emission of the Sun on Dec 18, 2021 and Dec 19, 2021 (GOES-16)
Solar flares on Dec 19, 2021
4 solar flares were observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C3.7 | 2907 | 20:59:00 | 21:12:00 | 21:27:00 |
| Flare of class C1.8 | 2907 | 19:04:00 | 19:16:00 | 19:28:00 |
| Flare of class C1.8 | 2907 | 16:15:00 | 16:23:00 | 16:27:00 |
| Flare of class C1.5 | 2907 | 11:51:00 | 11:59:00 | 12:03:00 |
Solar flares on Dec 18, 2021
2 solar flares were observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C6.3 | 2807 | 17:27:00 | 18:01:00 | 18:36:00 |
| Flare of class C1.1 | 2909 | 01:40:00 | 01:54:00 | 02:12:00 |