Solar flares on May 9, 2012
The most powerful solar flare in 24 hours
M4.7 (strong) flare - May 9 at 1:32 PM
Solar activity index
Value as of the end of the day on May 9, 2012
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 8, 2012 to May 9, 2012
Time zone — UTC+01 (London) — summer time
List of solar flares for May 9, 2012
The total number of solar flares of class C and higher — 11 flares
C class — 8 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.4 | 23:43 | 23:46 | 23:49 | — |
| C1.2 | 23:28 | 23:32 | 23:36 | — |
| M4.1 | 22:01 | 22:05 | 22:09 | 1476 |
| C9.1 | 21:45 | 21:52 | 21:55 | 1476 |
| C1.5 | 20:51 | 20:55 | 20:58 | — |
| C1.4 | 19:09 | 19:13 | 19:16 | — |
| C2.1 | 17:26 | 17:42 | 17:45 | 1476 |
| M1.8 | 15:02 | 15:08 | 15:14 | 1476 |
| M4.7 | 13:21 | 13:32 | 13:36 | 1476 |
| C1.3 | 10:47 | 10:50 | 10:52 | 1476 |
| C1.3 | 09:37 | 09:41 | 09:43 | — |