Solar flares on May 12, 2002
The most powerful solar flare in 24 hours
C3.9 (normal) flare - May 12 at 7:01 PM
Solar activity index
Value as of the end of the day on May 12, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 11, 2002 to May 12, 2002
Time zone — UTC-06 (Edmonton) — summer time
List of solar flares for May 12, 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 |
|---|---|---|---|---|
| C1.5 | 23:01 | 23:07 | 23:11 | — |
| C1.8 | 21:10 | 21:42 | 21:52 | 9948 |
| C1.1 | 20:34 | 20:37 | 20:40 | 9946 |
| C3.9 | 18:51 | 19:01 | 19:09 | 9934 |
| C1.4 | 13:43 | 13:57 | 14:14 | — |
| C1.0 | 13:35 | 13:38 | 13:41 | 9934 |
| C1.2 | 10:50 | 10:53 | 10:59 | 9934 |
| C1.2 | 08:46 | 08:51 | 09:00 | 9934 |
| C3.7 | 03:25 | 03:53 | 04:12 | — |