Solar flares on April 4, 2017
The most powerful solar flare in 24 hours
C4.9 (normal) flare - April 4 at 11:42 PM
Solar activity index
Value as of the end of the day on April 4, 2017
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 3, 2017 to April 4, 2017
Time zone — UTC+00
List of solar flares for April 4, 2017
The total number of solar flares of class C and higher — 13 flares
C class — 13 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.9 | 23:30 | 23:42 | 23:46 | 2645 |
| C1.2 | 22:22 | 22:25 | 22:27 | — |
| C2.1 | 21:31 | 21:36 | 21:39 | 2645 |
| C1.1 | 19:21 | 19:25 | 19:27 | 2645 |
| C1.9 | 16:55 | 17:01 | 17:03 | 2644 |
| C1.0 | 16:14 | 16:17 | 16:19 | 2645 |
| C2.3 | 13:31 | 13:41 | 13:56 | 2644 |
| C1.9 | 12:12 | 12:16 | 12:18 | 2644 |
| C2.3 | 09:46 | 09:51 | 09:58 | 2644 |
| C3.7 | 07:02 | 07:12 | 07:25 | 2644 |
| C1.1 | 06:09 | 06:16 | 06:19 | 2644 |
| C1.9 | 01:28 | 01:32 | 01:36 | 2648 |
| C1.4 | 00:35 | 00:39 | 00:54 | 2645 |