Solar flares — Apr 28, 2011
The strongest solar flare in the day
Flare of C2.4 level (normal) — in 12:58
Solar activity index
Value for Apr 28, 2011 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Apr 27, 2011 to Apr 28, 2011
Time zone — UTC+01 (London) - summer time

This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Apr 28, 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 | |
---|---|---|---|---|
C1.1
|
13:39 | 13:47 | 13:51 | — |
C2.4
|
12:51 | 12:58 | 13:03 | 1199 |
C1.0
|
03:32 | 03:40 | 03:46 | 1196 |