Solar flares — Sep 21, 2012
The strongest solar flare in the day
Flare of B8.7 level () — in 12:21
Solar activity index
Value for Sep 21, 2012 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Sep 20, 2012 to Sep 21, 2012
Time zone — UTC+00 (London)
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Sep 21, 2012
Total number of flares of class C and higher — 2 flares
C type — 0 | M type — 0 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
B4.8
|
19:28 | 19:32 | 19:38 | 1574 |
|
B8.7
|
11:56 | 12:21 | 12:48 | 1573 |