Solar flares — Feb 21, 2017
The strongest solar flare in the day
Flare of B3.0 level () — in 22:53
Solar activity index
Value for Feb 21, 2017 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Feb 20, 2017 to Feb 21, 2017
Time zone — UTC+00 (London)

This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Feb 21, 2017
Total number of flares of class C and higher — 6 flares
C type — 0 | M type — 0 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
B3.0
|
22:47 | 22:53 | 23:04 | 2638 |
B2.9
|
13:58 | 14:01 | 14:05 | 2638 |
B2.7
|
11:27 | 11:31 | 11:33 | 2638 |
B2.3
|
11:20 | 11:23 | 11:25 | 2638 |
B2.8
|
06:41 | 06:45 | 06:50 | 2638 |
B3.0
|
05:14 | 05:22 | 05:26 | 2638 |