Solar flares on April 21, 2024
The most powerful solar flare in 24 hours
M3.4 (strong) flare - April 21 at 9:52 PM
Solar activity index
Value as of the end of the day on April 21, 2024
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 20, 2024 to April 21, 2024
Time zone — UTC+00
List of solar flares for April 21, 2024
The total number of solar flares of class C and higher — 9 flares
C class — 6 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.7 | 23:37 | 23:45 | 23:49 | — |
| C4.0 | 23:06 | 23:15 | 23:37 | 3655 |
| M3.4 | 21:44 | 21:52 | 21:57 | 3638 |
| C5.3 | 20:42 | 20:55 | 21:10 | 3647 |
| M2.2 | 15:07 | 15:14 | 15:20 | 3638 |
| M1.0 | 12:39 | 12:59 | 13:34 | 3645 |
| C3.8 | 04:39 | 04:46 | 04:53 | 3638 |
| C3.9 | 04:25 | 04:34 | 04:39 | 3638 |
| C5.7 | 01:00 | 01:13 | 01:24 | 3645 |