Solar flares on February 19, 2011
The most powerful solar flare in 24 hours
C8.5 (normal) flare - February 19 at 9:04 AM
Solar activity index
Value as of the end of the day on February 19, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 18, 2011 to February 19, 2011
Time zone — UTC+01 (Oslo)
List of solar flares for February 19, 2011
The total number of solar flares of class C and higher — 12 flares
C class — 12 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.9 | 22:07 | 22:13 | 22:17 | 1158 |
| C6.1 | 17:39 | 17:43 | 17:45 | 1158 |
| C1.9 | 17:26 | 17:30 | 17:32 | 1158 |
| C1.5 | 16:24 | 16:29 | 16:41 | 1158 |
| C1.0 | 15:50 | 15:53 | 15:55 | 1162 |
| C1.1 | 13:20 | 13:24 | 13:34 | 1162 |
| C8.5 | 09:00 | 09:04 | 09:12 | 1162 |
| C1.9 | 08:40 | 08:44 | 08:47 | 1158 |
| C2.6 | 07:57 | 08:05 | 08:14 | 1162 |
| C3.4 | 03:56 | 04:03 | 04:11 | 1161 |
| C1.8 | 03:21 | 03:25 | 03:30 | 1158 |
| C1.3 | 02:33 | 02:37 | 02:41 | 1158 |