Solar flares on September 12, 2002
The most powerful solar flare in 24 hours
C4.1 (normal) flare - September 12 at 2:18 AM
Solar activity index
Value as of the end of the day on September 12, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 11, 2002 to September 12, 2002
Time zone — UTC+02 (Berlin) — summer time
List of solar flares for September 12, 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 |
|---|---|---|---|---|
| C3.1 | 22:54 | 23:23 | 23:36 | 105 |
| C1.0 | 15:35 | 15:38 | 15:40 | 105 |
| C2.5 | 13:47 | 13:53 | 14:00 | 107 |
| C1.1 | 09:51 | 09:55 | 09:58 | — |
| C2.8 | 09:07 | 09:14 | 09:25 | 107 |
| C1.4 | 08:26 | 08:30 | 08:33 | — |
| C4.1 | 02:09 | 02:18 | 02:30 | 107 |
| C1.2 | 00:55 | 01:00 | 01:02 | 107 |