Solar flares on October 12, 2011
The most powerful solar flare in 24 hours
C5.3 (normal) flare - October 12 at 12:37 PM
Solar activity index
Value as of the end of the day on October 12, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 11, 2011 to October 12, 2011
Time zone — UTC+01 (London) — summer time
List of solar flares for October 12, 2011
The total number of solar flares of class C and higher — 12 flares
C class — 12 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.4 | 20:43 | 20:50 | 21:04 | 1314 |
| C1.0 | 19:39 | 19:46 | 19:52 | 1319 |
| C2.7 | 17:37 | 17:44 | 17:51 | 1319 |
| C1.3 | 17:27 | 17:31 | 17:35 | 1319 |
| C1.1 | 16:18 | 16:22 | 16:24 | 1314 |
| C4.3 | 15:13 | 15:20 | 15:32 | 1319 |
| C5.3 | 12:30 | 12:37 | 12:44 | 1319 |
| C1.7 | 11:33 | 11:40 | 11:48 | 1314 |
| C1.7 | 10:46 | 10:51 | 10:55 | 1316 |
| C1.4 | 08:42 | 08:57 | 09:11 | 1314 |
| C4.4 | 07:12 | 07:18 | 07:23 | 1314 |
| C1.1 | 00:19 | 00:23 | 00:25 | 1316 |