Solar flares on February 13, 2011
The most powerful solar flare in 24 hours
M6.6 (strong) flare - February 13 at 8:38 PM
Solar activity index
Value as of the end of the day on February 13, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 12, 2011 to February 13, 2011
Time zone — UTC+03 (Sochi)
List of solar flares for February 13, 2011
The total number of solar flares of class C and higher — 4 flares
C class — 3 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M6.6 | 20:28 | 20:38 | 20:47 | 1158 |
| C4.7 | 16:44 | 16:56 | 17:11 | 1158 |
| C1.1 | 15:29 | 15:36 | 15:46 | 1158 |
| C1.4 | 10:25 | 10:29 | 10:32 | 1160 |