Solar flares on July 21, 2016
The most powerful solar flare in 24 hours
M1.2 (strong) flare - July 21 at 1:46 AM
Solar activity index
Value as of the end of the day on July 21, 2016
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 20, 2016 to July 21, 2016
Time zone — UTC+01 (London) — summer time
List of solar flares for July 21, 2016
The total number of solar flares of class C and higher — 13 flares
C class — 11 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.6 | 23:34 | 23:46 | 23:58 | 2567 |
| C1.2 | 18:00 | 18:04 | 18:16 | 2567 |
| C1.2 | 16:38 | 16:42 | 16:47 | 2567 |
| C2.2 | 14:30 | 14:34 | 14:37 | 2567 |
| C9.1 | 13:47 | 13:55 | 14:03 | 2567 |
| C7.2 | 12:06 | 12:19 | 12:22 | 2567 |
| C1.0 | 10:40 | 10:44 | 10:48 | 2567 |
| C1.6 | 05:09 | 05:13 | 05:16 | — |
| M1.0 | 02:34 | 02:49 | 03:04 | 2567 |
| M1.2 | 01:42 | 01:46 | 01:50 | 2567 |
| C3.7 | 01:19 | 01:37 | 01:41 | 2567 |
| C3.4 | 00:45 | 00:51 | 00:54 | 2567 |
| C3.6 | 00:30 | 00:35 | 00:39 | 2567 |