Solar flares on October 13, 2011
The most powerful solar flare in 24 hours
C2.2 (normal) flare - October 13 at 1:23 PM
Solar activity index
Value as of the end of the day on October 13, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 12, 2011 to October 13, 2011
Time zone — UTC+01 (London) — summer time
List of solar flares for October 13, 2011
The total number of solar flares of class C and higher — 7 flares
C class — 7 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.0 | 19:16 | 19:50 | 20:00 | 1319 |
| C1.6 | 16:05 | 16:18 | 16:22 | — |
| C2.2 | 12:29 | 13:23 | 13:55 | 1313 |
| C1.0 | 10:37 | 10:46 | 10:58 | 1313 |
| C1.2 | 08:07 | 08:11 | 08:14 | 1314 |
| C1.3 | 04:00 | 04:05 | 04:12 | 1319 |
| C2.0 | 01:25 | 01:31 | 01:35 | 1319 |