Solar flares on February 20, 2011
The most powerful solar flare in 24 hours
C1.7 (normal) flare - February 20 at 3:57 AM
Solar activity index
Value as of the end of the day on February 20, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 19, 2011 to February 20, 2011
Time zone — UTC+00 (London)
List of solar flares for February 20, 2011
The total number of solar flares of class C and higher — 3 flares
C class — 3 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.7 | 03:54 | 03:57 | 03:59 | 1161 |
| C1.4 | 02:45 | 03:19 | 03:31 | 1162 |
| C1.2 | 00:46 | 01:23 | 01:45 | 1161 |