Solar flares on August 13, 2013
The most powerful solar flare in 24 hours
C4.9 (normal) flare - August 13 at 8:31 PM
Solar activity index
Value as of the end of the day on August 13, 2013
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 12, 2013 to August 13, 2013
Time zone — UTC-04 (Columbus) — summer time
List of solar flares for August 13, 2013
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 | 22:03 | 22:09 | 22:17 | 1809 |
| C4.9 | 20:22 | 20:31 | 20:35 | 1809 |
| C1.0 | 19:11 | 19:14 | 19:16 | 1818 |
| C4.4 | 17:31 | 17:38 | 17:43 | 1809 |
| C4.6 | 14:46 | 14:50 | 14:52 | 1809 |
| C1.8 | 12:49 | 13:01 | 13:06 | 1809 |
| C1.5 | 11:49 | 11:53 | 11:56 | 1818 |
| C2.8 | 07:35 | 07:46 | 07:52 | 1809 |
| C1.1 | 01:04 | 01:17 | 01:21 | 1809 |