Solar flares on April 21, 2024
The most powerful solar flare in 24 hours
M3.4 (strong) flare - April 21 at 11:52 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+02 (Prague) — summer time
List of solar flares for April 21, 2024
The total number of solar flares of class C and higher — 7 flares
C class — 4 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M3.4 | 23:44 | 23:52 | 23:57 | 3638 |
| C5.3 | 22:42 | 22:55 | 23:10 | 3647 |
| M2.2 | 17:07 | 17:14 | 17:20 | 3638 |
| M1.0 | 14:39 | 14:59 | 15:34 | 3645 |
| C3.8 | 06:39 | 06:46 | 06:53 | 3638 |
| C3.9 | 06:25 | 06:34 | 06:39 | 3638 |
| C5.7 | 03:00 | 03:13 | 03:24 | 3645 |