Solar flares — Dec 20, 2017
The strongest solar flare in the day
Flare of B3.0 level () — in 18:22
Solar activity index
Value for Dec 20, 2017 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Dec 19, 2017 to Dec 20, 2017
Time zone — UTC+00 (London)

This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Dec 20, 2017
Total number of flares of class C and higher — 4 flares
C type — 0 | M type — 0 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
B1.0
|
23:28 | 23:31 | 23:34 | 2692 |
B1.2
|
20:49 | 20:53 | 21:01 | 2692 |
B3.0
|
18:14 | 18:22 | 18:27 | 2692 |
B1.6
|
07:56 | 08:00 | 08:06 | 2692 |