Solar flares on April 9, 2013
The most powerful solar flare in 24 hours
C2.9 (normal) flare - April 9 at 4:59 AM
Solar activity index
Value as of the end of the day on April 9, 2013
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 8, 2013 to April 9, 2013
Time zone — UTC-04 (Concord) — summer time
List of solar flares for April 9, 2013
The total number of solar flares of class C and higher — 8 flares
C class — 8 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.8 | 21:50 | 22:16 | 22:25 | 1718 |
| C1.1 | 16:34 | 16:38 | 16:40 | 1718 |
| C1.5 | 15:51 | 16:03 | 16:12 | — |
| C1.0 | 10:46 | 10:50 | 10:54 | — |
| C1.5 | 09:28 | 09:32 | 09:36 | 1718 |
| C1.6 | 07:32 | 07:41 | 07:58 | 1718 |
| C2.9 | 04:30 | 04:59 | 05:17 | 1718 |
| C2.2 | 03:17 | 03:24 | 03:28 | 1718 |