Solar flares — Apr 16, 2021
The strongest solar flare in the day
Flare of B3.4 level () — in 18:10
Solar activity index
Value for Apr 16, 2021 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Apr 15, 2021 to Apr 16, 2021
Time zone — UTC+00 (London)

This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Apr 16, 2021
Total number of flares of class C and higher — 7 flares
C type — 0 | M type — 0 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
B1.1
|
21:05 | 21:09 | 21:14 | 2816 |
B1.3
|
19:32 | 19:40 | 19:46 | 2815 |
B3.4
|
17:57 | 18:10 | 18:15 | 2814 |
B1.2
|
17:38 | 17:45 | 17:51 | 2814 |
B1.6
|
17:17 | 17:25 | 17:31 | 2814 |
B1.6
|
10:39 | 10:47 | 10:52 | 2816 |
B1.2
|
02:05 | 02:15 | 02:21 | — |