Solar flares on May 12, 2013
The most powerful solar flare in 24 hours
X1.7 (very strong) flare - May 12 at 10:17 PM
Solar activity index
Value as of the end of the day on May 12, 2013
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 11, 2013 to May 12, 2013
Time zone — UTC-04 (Augusta) — summer time
List of solar flares for May 12, 2013
The total number of solar flares of class C and higher — 13 flares
C class — 10 | M class — 2 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| X1.7 | 21:53 | 22:17 | 22:32 | 1748 |
| C9.3 | 20:32 | 20:39 | 20:46 | 1748 |
| M1.2 | 18:37 | 18:44 | 18:52 | — |
| M1.9 | 16:17 | 16:32 | 17:03 | — |
| C2.0 | 11:57 | 12:01 | 12:05 | 1745 |
| C1.6 | 05:40 | 06:23 | 06:41 | 1743 |
| C1.6 | 04:57 | 05:03 | 05:14 | 1743 |
| C1.5 | 04:22 | 04:26 | 04:28 | 1745 |
| C1.3 | 02:26 | 02:27 | 02:29 | 1745 |
| C1.3 | 02:16 | 02:19 | 02:24 | 1744 |
| C1.0 | 01:58 | 02:01 | 02:03 | 1734 |
| C1.2 | 01:18 | 01:27 | 01:30 | 1745 |
| C2.2 | 00:11 | 00:36 | 00:45 | 1746 |