Solar flares on August 12, 2004
The most powerful solar flare in 24 hours
M1.2 (strong) flare - August 12 at 5:05 AM
Solar activity index
Value as of the end of the day on August 12, 2004
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 11, 2004 to August 12, 2004
Time zone — UTC+00
List of solar flares for August 12, 2004
The total number of solar flares of class C and higher — 12 flares
C class — 11 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.2 | 23:43 | 23:46 | 23:49 | 656 |
| C9.9 | 22:53 | 22:58 | 23:03 | 656 |
| C6.1 | 22:23 | 22:27 | 22:29 | 656 |
| C4.4 | 18:53 | 18:57 | 18:59 | 656 |
| C6.5 | 16:11 | 16:23 | 17:29 | 656 |
| C2.1 | 12:57 | 13:01 | 13:04 | 656 |
| C4.9 | 11:27 | 11:43 | 11:52 | 656 |
| C4.0 | 09:31 | 09:35 | 09:42 | 656 |
| C1.8 | 09:07 | 09:11 | 09:15 | 656 |
| C2.2 | 06:19 | 06:29 | 06:33 | 656 |
| M1.2 | 04:38 | 05:05 | 05:20 | 656 |
| C1.2 | 01:13 | 01:18 | 01:21 | 656 |