Solar flares on August 13, 2004
The most powerful solar flare in 24 hours
X1.0 (very strong) flare - August 13 at 11:42 PM
Solar activity index
Value as of the end of the day on August 13, 2004
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 12, 2004 to August 13, 2004
Time zone — UTC+05:30 (Supaul)
List of solar flares for August 13, 2004
The total number of solar flares of class C and higher — 12 flares
C class — 9 | M class — 2 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| X1.0 | 23:37 | 23:42 | 23:45 | 656 |
| C2.3 | 22:25 | 22:28 | 22:33 | 656 |
| C8.6 | 20:40 | 20:46 | 20:51 | 656 |
| M1.1 | 17:32 | 17:39 | 17:42 | 656 |
| C2.4 | 15:06 | 15:13 | 15:27 | 656 |
| M1.2 | 12:06 | 12:59 | 13:08 | 656 |
| C1.9 | 08:22 | 08:25 | 08:28 | 656 |
| C2.2 | 06:26 | 06:32 | 06:38 | 656 |
| C1.2 | 05:13 | 05:16 | 05:19 | 656 |
| C9.9 | 04:23 | 04:28 | 04:33 | 656 |
| C6.1 | 03:53 | 03:57 | 03:59 | 656 |
| C4.4 | 00:23 | 00:27 | 00:29 | 656 |