Solar flares on February 13, 2002
The most powerful solar flare in 24 hours
C7.8 (normal) flare - February 13 at 2:12 PM
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+07 (Barnaul)
List of solar flares for February 13, 2002
The total number of solar flares of class C and higher — 9 flares
C class — 9 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.4 | 23:03 | 23:07 | 23:10 | — |
| C1.3 | 19:28 | 19:31 | 19:36 | — |
| C3.2 | 16:36 | 16:48 | 16:53 | 9822 |
| C2.8 | 15:51 | 15:57 | 16:05 | 9825 |
| C7.8 | 13:57 | 14:12 | 14:25 | 9825 |
| C1.7 | 12:48 | 12:51 | 12:54 | — |
| C2.6 | 08:21 | 08:25 | 08:39 | 9825 |
| C1.9 | 07:36 | 07:55 | 07:58 | 9825 |
| C5.0 | 04:29 | 04:36 | 04:41 | 9811 |