Solar flares — Feb 20, 2011
The strongest solar flare in the day
Flare of C1.7 level (normal) — in 03:57
Solar activity index
Value for Feb 20, 2011 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Feb 19, 2011 to Feb 20, 2011
Time zone — UTC+00 (London)

This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Feb 20, 2011
Total number of flares of class C and higher — 3 flares
C type — 3 | M type — 0 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
C1.7
|
03:54 | 03:57 | 03:59 | 1161 |
C1.4
|
02:45 | 03:19 | 03:31 | 1162 |
C1.2
|
00:46 | 01:23 | 01:45 | 1161 |