Sun flares
X-ray index
Diagram of the solar flare activity
X-ray emission of the Sun on Sep 19, 2021 and Sep 20, 2021 (GOES-16)
Solar flares on Sep 20, 2021
No solar flares of C, M and X-class were observed
Solar flares on Sep 19, 2021
1 solar flare was observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C1.6 | 2871 | 01:04:00 | 01:15:00 | 01:22:00 |