Solar flares — Apr 21, 2023
The strongest solar flare in the day
Flare of M1.7 level (strong) — in 19:12
Solar activity index
Value for Apr 21, 2023 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Apr 20, 2023 to Apr 21, 2023
Time zone — UTC+01 (London) - summer time
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Apr 21, 2023
Total number of flares of class C and higher — 4 flares
C type — 3 | M type — 1 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C4.0
|
23:12 | 23:23 | 23:30 | 3279 |
|
M1.7
|
18:44 | 19:12 | 19:44 | 3283 |
|
C1.1
|
03:07 | 03:14 | 03:18 | — |
|
C1.2
|
00:20 | 00:27 | 00:34 | 3281 |