Solar flares on October 16, 2011
The most powerful solar flare in 24 hours
C6.3 (normal) flare - October 16 at 4:14 PM
Solar activity index
Value as of the end of the day on October 16, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 15, 2011 to October 16, 2011
Time zone — UTC+01 (London) — summer time
List of solar flares for October 16, 2011
The total number of solar flares of class C and higher — 11 flares
C class — 11 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.9 | 18:28 | 18:37 | 18:48 | — |
| C4.4 | 16:53 | 16:57 | 16:59 | — |
| C6.3 | 16:04 | 16:14 | 16:22 | 1319 |
| C3.7 | 15:28 | 15:35 | 15:49 | 1319 |
| C1.4 | 14:51 | 14:55 | 14:57 | 1317 |
| C1.8 | 12:53 | 13:19 | 13:34 | — |
| C2.0 | 10:31 | 10:42 | 10:54 | 1319 |
| C2.8 | 07:41 | 08:01 | 08:28 | 1319 |
| C1.3 | 05:27 | 05:41 | 05:51 | 1319 |
| C1.9 | 04:28 | 04:34 | 04:39 | 1319 |
| C1.8 | 02:35 | 02:40 | 02:47 | 1319 |