Solar flares on July 13, 2004
The most powerful solar flare in 24 hours
M6.7 (strong) flare - July 13 at 12:17 AM
Solar activity index
Value as of the end of the day on July 13, 2004
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 12, 2004 to July 13, 2004
Time zone — UTC+00
List of solar flares for July 13, 2004
The total number of solar flares of class C and higher — 15 flares
C class — 10 | M class — 5 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.2 | 23:27 | 23:33 | 23:37 | 646 |
| C2.8 | 23:04 | 23:09 | 23:14 | 646 |
| C5.1 | 22:01 | 22:06 | 22:09 | 649 |
| C2.2 | 21:17 | 21:24 | 21:36 | 646 |
| M6.2 | 19:24 | 19:32 | 19:36 | 646 |
| M1.1 | 18:33 | 18:38 | 18:42 | 649 |
| C5.0 | 12:45 | 12:49 | 12:52 | 649 |
| M2.9 | 11:59 | 12:08 | 12:12 | 649 |
| M5.4 | 08:40 | 08:48 | 08:55 | 646 |
| C1.5 | 08:25 | 08:29 | 08:34 | 649 |
| C2.6 | 07:10 | 07:14 | 07:19 | 649 |
| C4.1 | 06:26 | 06:33 | 06:48 | 649 |
| C6.7 | 05:21 | 05:33 | 05:40 | 646 |
| C2.4 | 04:31 | 04:40 | 04:46 | 649 |
| M6.7 | 00:09 | 00:17 | 00:23 | 646 |