Solar flares on April 21, 2013
The most powerful solar flare in 24 hours
C3.6 (normal) flare - April 21 at 6:39 AM
Solar activity index
Value as of the end of the day on April 21, 2013
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 20, 2013 to April 21, 2013
Time zone — UTC+05:30 (Mirpeta)
List of solar flares for April 21, 2013
The total number of solar flares of class C and higher — 14 flares
C class — 14 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.9 | 21:30 | 21:33 | 21:36 | 1726 |
| C2.2 | 19:46 | 19:50 | 19:53 | 1726 |
| C1.0 | 17:08 | 17:33 | 17:39 | 1726 |
| C1.0 | 16:22 | 16:25 | 16:27 | 1726 |
| C1.8 | 15:51 | 15:54 | 15:56 | 1726 |
| C2.5 | 14:50 | 14:53 | 14:57 | 1726 |
| C1.3 | 13:00 | 13:04 | 13:10 | 1726 |
| C2.7 | 11:27 | 11:30 | 11:32 | 1726 |
| C1.4 | 10:34 | 10:44 | 10:48 | 1726 |
| C1.0 | 08:26 | 08:30 | 08:32 | 1726 |
| C3.6 | 06:32 | 06:39 | 06:46 | 1726 |
| C1.3 | 04:16 | 04:22 | 04:29 | 1726 |
| C1.1 | 03:54 | 03:59 | 04:03 | 1726 |
| C1.1 | 03:39 | 03:43 | 03:48 | 1726 |