Solar flares — Apr 21, 2024
The strongest solar flare in the day
Flare of M3.4 level (strong) — in 21:52
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+00 (London)

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 — 9 flares
C type — 6 | M type — 3 | X type — 0
start | maximum | 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 |