Sun flares
X-ray index
Diagram of the solar flare activity
X-ray emission of the Sun on Sep 20, 2021 and Sep 21, 2021 (GOES-16)
Solar flares on Sep 21, 2021
3 solar flares were observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C1.1 | 2871 | 18:18:00 | 18:28:00 | 18:35:00 |
| Flare of class C1.8 | 2873 | 11:43:00 | 11:53:00 | 11:57:00 |
| Flare of class C1.1 | 2873 | 08:53:00 | 09:03:00 | 09:16:00 |
Solar flares on Sep 20, 2021
No solar flares of C, M and X-class were observed