Sun flares
X-ray index
Diagram of the solar flare activity
X-ray emission of the Sun on Aug 17, 2017 and Aug 18, 2017 (GOES-13)
Solar flares on Aug 18, 2017
2 solar flares were observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C2.9 | 2671 | 21:01:00 | 21:04:00 | 21:10:00 |
| Flare of class C4.4 | 0 | 19:49:00 | 20:02:00 | 20:33:00 |
Solar flares on Aug 17, 2017
No solar flares of C, M and X-class were observed