Solar flares on June 21, 2013
The most powerful solar flare in 24 hours
M2.9 (strong) flare - June 21 at 4:14 AM
Solar activity index
Value as of the end of the day on June 21, 2013
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from June 20, 2013 to June 21, 2013
Time zone — UTC+01 (London) — summer time
List of solar flares for June 21, 2013
The total number of solar flares of class C and higher — 8 flares
C class — 7 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.1 | 22:00 | 23:17 | 23:39 | 1772 |
| C1.0 | 19:02 | 19:06 | 19:09 | 1776 |
| C1.1 | 13:19 | 13:22 | 13:24 | 1772 |
| C1.3 | 13:01 | 13:05 | 13:07 | 1772 |
| C1.3 | 11:19 | 11:33 | 11:36 | 1772 |
| C3.1 | 10:25 | 10:31 | 10:35 | — |
| C1.6 | 10:15 | 10:18 | 10:22 | 1772 |
| M2.9 | 03:30 | 04:14 | 04:43 | 1777 |