Solar flares on May 13, 2013
The most powerful solar flare in 24 hours
X3.2 (very strong) flare - May 13 at 9:11 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-04 (Washington) — summer time
List of solar flares for May 13, 2013
The total number of solar flares of class C and higher — 12 flares
C class — 9 | M class — 1 | X class — 2
| Class | begin | max | end | region |
|---|---|---|---|---|
| X3.2 | 20:00 | 21:11 | 21:20 | 1748 |
| C8.3 | 17:58 | 18:05 | 18:11 | 1745 |
| C2.9 | 17:26 | 17:29 | 17:34 | 1748 |
| X2.8 | 11:48 | 12:05 | 12:16 | 1748 |
| C5.3 | 09:55 | 10:40 | 11:10 | 1748 |
| C4.0 | 08:47 | 08:52 | 09:00 | 1748 |
| M1.3 | 07:57 | 08:03 | 08:09 | 1748 |
| C1.7 | 06:34 | 06:37 | 06:40 | — |
| C2.8 | 05:24 | 05:29 | 05:37 | 1748 |
| C4.5 | 04:35 | 04:38 | 04:44 | 1745 |
| C2.0 | 04:02 | 04:07 | 04:11 | — |
| C2.4 | 03:02 | 03:06 | 03:09 | — |