Solar flares on February 17, 2011
The most powerful solar flare in 24 hours
C6.1 (normal) flare - February 17 at 7:16 AM
Solar activity index
Value as of the end of the day on February 17, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 16, 2011 to February 17, 2011
Time zone — UTC+05:30 (Ranchi)
List of solar flares for February 17, 2011
The total number of solar flares of class C and higher — 15 flares
C class — 15 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.3 | 21:19 | 21:24 | 21:34 | 1158 |
| C2.4 | 18:03 | 18:06 | 18:09 | 1158 |
| C2.2 | 16:08 | 16:14 | 16:19 | — |
| C2.6 | 15:55 | 15:58 | 16:02 | 1158 |
| C1.9 | 14:54 | 15:00 | 15:05 | 1158 |
| C1.2 | 13:39 | 13:43 | 13:48 | 1158 |
| C1.2 | 12:14 | 12:17 | 12:21 | 1158 |
| C1.0 | 11:03 | 11:06 | 11:10 | 1158 |
| C1.5 | 09:39 | 09:45 | 09:52 | 1158 |
| C2.3 | 08:16 | 08:38 | 08:51 | 1158 |
| C6.1 | 07:11 | 07:16 | 07:20 | 1158 |
| C2.8 | 04:32 | 05:55 | 06:37 | 1158 |
| C4.2 | 02:36 | 02:41 | 02:44 | 1158 |
| C1.1 | 01:41 | 01:45 | 01:49 | 1158 |
| C1.3 | 00:59 | 01:06 | 01:13 | 1158 |