Solar flares on February 17, 2013
The most powerful solar flare in 24 hours
M1.9 (strong) flare - February 17 at 3:50 PM
Solar activity index
Value as of the end of the day on February 17, 2013
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 16, 2013 to February 17, 2013
Time zone — UTC+00 (London)
List of solar flares for February 17, 2013
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 |
|---|---|---|---|---|
| C1.0 | 19:57 | 20:00 | 20:02 | 1675 |
| M1.9 | 15:45 | 15:50 | 15:52 | 1675 |
| C2.5 | 15:26 | 15:40 | 15:43 | 1675 |
| C1.0 | 00:31 | 00:36 | 00:38 | 1675 |