Solar flares on February 13, 2002
The most powerful solar flare in 24 hours
C7.8 (normal) flare - February 13 at 9:12 AM
Solar activity index
Value as of the end of the day on February 13, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 12, 2002 to February 13, 2002
Time zone — UTC+02 (Riga)
List of solar flares for February 13, 2002
The total number of solar flares of class C and higher — 8 flares
C class — 8 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.4 | 18:03 | 18:07 | 18:10 | — |
| C1.3 | 14:28 | 14:31 | 14:36 | — |
| C3.2 | 11:36 | 11:48 | 11:53 | 9822 |
| C2.8 | 10:51 | 10:57 | 11:05 | 9825 |
| C7.8 | 08:57 | 09:12 | 09:25 | 9825 |
| C1.7 | 07:48 | 07:51 | 07:54 | — |
| C2.6 | 03:21 | 03:25 | 03:39 | 9825 |
| C1.9 | 02:36 | 02:55 | 02:58 | 9825 |