Solar flares on May 13, 2013
The most powerful solar flare in 24 hours
X2.8 (very strong) flare - May 13 at 6:05 PM
Solar activity index
Value as of the end of the day on May 13, 2013
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 12, 2013 to May 13, 2013
Time zone — UTC+02 (Vaduz) — summer time
List of solar flares for May 13, 2013
The total number of solar flares of class C and higher — 13 flares
C class — 9 | M class — 2 | X class — 2
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.9 | 23:26 | 23:29 | 23:34 | 1748 |
| X2.8 | 17:48 | 18:05 | 18:16 | 1748 |
| C5.3 | 15:55 | 16:40 | 17:10 | 1748 |
| C4.0 | 14:47 | 14:52 | 15:00 | 1748 |
| M1.3 | 13:57 | 14:03 | 14:09 | 1748 |
| C1.7 | 12:34 | 12:37 | 12:40 | — |
| C2.8 | 11:24 | 11:29 | 11:37 | 1748 |
| C4.5 | 10:35 | 10:38 | 10:44 | 1745 |
| C2.0 | 10:02 | 10:07 | 10:11 | — |
| C2.4 | 09:02 | 09:06 | 09:09 | — |
| X1.7 | 03:53 | 04:17 | 04:32 | 1748 |
| C9.3 | 02:32 | 02:39 | 02:46 | 1748 |
| M1.2 | 00:37 | 00:44 | 00:52 | — |