Sun flares
X-ray index
Diagram of the solar flare activity
X-ray emission of the Sun on Dec 20, 2012 and Dec 21, 2012 (GOES-15)
Solar flares on Dec 21, 2012
1 solar flare was observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C1.9 | 1635 | 23:52:00 | 23:55:00 | 24:00:00 |
Solar flares on Dec 20, 2012
No solar flares of C, M and X-class were observed