Solar flares — Apr 30, 2021
The strongest solar flare in the day
Flare of B1.9 level () — in 04:17
Solar activity index
Value for Apr 30, 2021 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Apr 29, 2021 to Apr 30, 2021
Time zone — UTC+00 (London)

This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Apr 30, 2021
Total number of flares of class C and higher — 5 flares
C type — 0 | M type — 0 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
B1.0
|
12:43 | 12:52 | 13:03 | 2820 |
B1.6
|
11:51 | 11:59 | 12:09 | 2820 |
B1.4
|
04:48 | 04:55 | 05:02 | 2818 |
B1.9
|
04:04 | 04:17 | 04:33 | 2818 |
B1.0
|
03:26 | 03:33 | 03:44 | 2820 |