Solar flares on February 21, 2013
The most powerful solar flare in 24 hours
C2.5 (normal) flare - February 21 at 12:05 AM
Solar activity index
Value as of the end of the day on February 21, 2013
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 20, 2013 to February 21, 2013
Time zone — UTC-05 (Columbus)
List of solar flares for February 21, 2013
The total number of solar flares of class C and higher — 1 flare
C class — 1 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.5 | 23:56 | 00:05 | 00:17 | 1678 |