Solar flares — May 13, 2021
The strongest solar flare in the day
Flare of B3.5 level () — in 02:44
Solar activity index
Value for May 13, 2021 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from May 12, 2021 to May 13, 2021
Time zone — UTC+00 (London)

This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for May 13, 2021
Total number of flares of class C and higher — 4 flares
C type — 0 | M type — 0 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
B1.3
|
18:07 | 18:15 | 18:22 | 2822 |
B1.8
|
11:12 | 11:16 | 11:31 | 2822 |
B3.5
|
02:33 | 02:44 | 02:51 | 2822 |
B2.5
|
01:36 | 01:47 | 01:55 | 2822 |