Solar flares on July 13, 2003
The most powerful solar flare in 24 hours
C8.7 (normal) flare - July 13 at 5:20 PM
Solar activity index
Value as of the end of the day on July 13, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 12, 2003 to July 13, 2003
Time zone — UTC-08 (Anchorage) — summer time
List of solar flares for July 13, 2003
The total number of solar flares of class C and higher — 7 flares
C class — 7 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.0 | 18:30 | 18:40 | 18:53 | 409 |
| C8.7 | 16:58 | 17:20 | 17:34 | 409 |
| C2.9 | 15:05 | 15:10 | 15:14 | 409 |
| C2.2 | 14:40 | 14:52 | 14:56 | 409 |
| C1.1 | 11:36 | 11:50 | 12:00 | 409 |
| C1.5 | 04:15 | 04:26 | 04:36 | 409 |
| C1.0 | 02:52 | 03:00 | 03:03 | 409 |