Sun flares
X-ray index
Diagram of the solar flare activity
X-ray emission of the Sun on Dec 18, 2011 and Dec 19, 2011 (GOES-15)
Solar flares on Dec 19, 2011
No solar flares of C, M and X-class were observed
Solar flares on Dec 18, 2011
2 solar flares were observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C1.8 | 1376 | 04:59:00 | 05:04:00 | 05:07:00 |
| Flare of class C1.9 | 1376 | 02:00:00 | 02:05:00 | 02:08:00 |