Solar flares on April 16, 2011
The most powerful solar flare in 24 hours
C5.7 (normal) flare - April 16 at 3:14 PM
Solar activity index
Value as of the end of the day on April 16, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 15, 2011 to April 16, 2011
Time zone — UTC+01 (London) — summer time
List of solar flares for April 16, 2011
The total number of solar flares of class C and higher — 10 flares
C class — 10 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.0 | 20:59 | 21:17 | 21:28 | 1185 |
| C3.7 | 17:34 | 17:53 | 18:08 | 1185 |
| C5.7 | 14:51 | 15:14 | 15:29 | 1190 |
| C1.8 | 10:00 | 10:07 | 10:12 | 1185 |
| C1.7 | 07:06 | 07:15 | 07:24 | — |
| C3.5 | 06:26 | 06:38 | 06:45 | 1190 |
| C1.4 | 05:01 | 05:08 | 05:17 | 1185 |
| C2.1 | 03:31 | 04:12 | 04:30 | 1190 |
| C1.4 | 02:54 | 03:01 | 03:07 | 1193 |
| C5.2 | 01:34 | 01:57 | 02:08 | 1190 |