Solar flares on May 9, 2013
The most powerful solar flare in 24 hours
M3.9 (strong) flare - May 9 at 8:57 PM
Solar activity index
Value as of the end of the day on May 9, 2013
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 8, 2013 to May 9, 2013
Time zone — UTC-04 (Barrie) — summer time
List of solar flares for May 9, 2013
The total number of solar flares of class C and higher — 10 flares
C class — 9 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.1 | 22:57 | 23:01 | 23:06 | 1744 |
| C3.1 | 22:40 | 22:44 | 22:47 | 1744 |
| M3.9 | 20:44 | 20:57 | 21:08 | 1745 |
| C9.0 | 18:52 | 19:16 | 19:32 | 1744 |
| C1.6 | 17:50 | 18:01 | 18:11 | 1744 |
| C2.2 | 16:52 | 17:00 | 17:17 | 1744 |
| C1.3 | 16:28 | 16:31 | 16:34 | 1742 |
| C2.7 | 13:36 | 13:42 | 14:11 | 1744 |
| C1.4 | 12:33 | 12:42 | 12:55 | — |
| C3.4 | 01:16 | 01:23 | 01:31 | 1736 |