Solar flares — Sep 12, 2011
The strongest solar flare in the day
Flare of C9.9 level (normal) — in 20:54
Solar activity index
Value for Sep 12, 2011 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Sep 11, 2011 to Sep 12, 2011
Time zone — UTC+00 (London)

This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Sep 12, 2011
Total number of flares of class C and higher — 4 flares
C type — 4 | M type — 0 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
C9.9
|
20:30 | 20:54 | 21:51 | 1295 |
C2.9
|
12:15 | 12:29 | 12:40 | 1295 |
C2.0
|
03:24 | 03:29 | 03:33 | 1292 |
C1.7
|
02:22 | 02:26 | 02:30 | 1292 |