Solar flares — Oct 21, 2010
The strongest solar flare in the day
Flare of B3.1 level () — in 19:11
Solar activity index
Value for Oct 21, 2010 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Oct 20, 2010 to Oct 21, 2010
Time zone — UTC+00 (London)

This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Oct 21, 2010
Total number of flares of class C and higher — 6 flares
C type — 0 | M type — 0 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
B2.6
|
23:08 | 23:17 | 23:40 | — |
B1.7
|
20:35 | 20:40 | 20:44 | — |
B3.1
|
19:00 | 19:11 | 19:29 | — |
B2.0
|
17:28 | 17:40 | 17:48 | 1112 |
B2.3
|
08:34 | 08:52 | 08:57 | 1117 |
B1.6
|
05:23 | 05:27 | 05:31 | 1117 |