Sun flares
X-ray index
Diagram of the solar flare activity
X-ray emission of the Sun on Apr 17, 2011 and Apr 18, 2011 (GOES-15)
Solar flares on Apr 18, 2011
4 solar flares were observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C1.0 | 1195 | 19:17:00 | 19:24:00 | 19:31:00 |
| Flare of class C1.5 | 1193 | 18:55:00 | 19:02:00 | 19:08:00 |
| Flare of class C1.8 | 0 | 03:32:00 | 03:48:00 | 04:16:00 |
| Flare of class C1.8 | 1193 | 02:35:00 | 02:43:00 | 02:47:00 |
Solar flares on Apr 17, 2011
2 solar flares were observed :
| Active region | Begin, UT | Max, UT | End, UT | |
|---|---|---|---|---|
| Flare of class C1.3 | 0 | 19:00:00 | 19:18:00 | 19:33:00 |
| Flare of class C1.4 | 1185 | 14:08:00 | 14:15:00 | 14:23:00 |