Solar flares — Apr 21, 2024
The strongest solar flare in the day
Flare of M3.4 level (strong) — in 22:52
Solar activity index
Value for Apr 21, 2024 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Apr 20, 2024 to Apr 21, 2024
Time zone — UTC+01 (London) - summer time

This chart in PNG format — high resolution
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List of solar flares for Apr 21, 2024
Total number of flares of class C and higher — 7 flares
C type — 4 | M type — 3 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
M3.4
|
22:44 | 22:52 | 22:57 | 3638 |
C5.3
|
21:42 | 21:55 | 22:10 | 3647 |
M2.2
|
16:07 | 16:14 | 16:20 | 3638 |
M1.0
|
13:39 | 13:59 | 14:34 | 3645 |
C3.8
|
05:39 | 05:46 | 05:53 | 3638 |
C3.9
|
05:25 | 05:34 | 05:39 | 3638 |
C5.7
|
02:00 | 02:13 | 02:24 | 3645 |