Solar flares on April 28, 2013
The most powerful solar flare in 24 hours
C4.4 (normal) flare - April 28 at 2:17 PM
Solar activity index
Value as of the end of the day on April 28, 2013
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 27, 2013 to April 28, 2013
Time zone — UTC-06 (Santa Fe) — summer time
List of solar flares for April 28, 2013
The total number of solar flares of class C and higher — 19 flares
C class — 19 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.0 | 23:51 | 23:55 | 00:00 | 1731 |
| C3.3 | 23:02 | 23:18 | 23:28 | 1732 |
| C2.0 | 22:13 | 22:23 | 22:27 | — |
| C1.9 | 21:40 | 21:44 | 21:49 | — |
| C3.0 | 21:10 | 21:17 | 21:21 | 1731 |
| C3.0 | 20:24 | 20:46 | 20:54 | 1732 |
| C1.2 | 19:55 | 20:01 | 20:07 | — |
| C1.7 | 17:55 | 18:05 | 18:13 | 1731 |
| C3.1 | 17:27 | 17:31 | 17:33 | 1731 |
| C1.3 | 15:32 | 15:40 | 15:43 | 1731 |
| C1.5 | 14:59 | 15:03 | 15:07 | 1731 |
| C4.4 | 14:10 | 14:17 | 14:26 | 1733 |
| C3.6 | 12:00 | 12:04 | 12:06 | 1731 |
| C1.8 | 10:58 | 11:02 | 11:04 | 1731 |
| C3.7 | 09:52 | 09:55 | 09:58 | 1731 |
| C1.8 | 09:38 | 09:44 | 09:49 | 1731 |
| C1.9 | 08:53 | 08:56 | 08:59 | 1731 |
| C1.1 | 08:35 | 08:38 | 08:41 | 1731 |
| C2.1 | 00:07 | 00:13 | 00:17 | 1731 |