Solar flares — Oct 21, 2011
The strongest solar flare in the day
Flare of M1.3 level (strong) — in 13:00
Solar activity index
Value for Oct 21, 2011 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Oct 20, 2011 to Oct 21, 2011
Time zone — UTC+00 (London)
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Oct 21, 2011
Total number of flares of class C and higher — 4 flares
C type — 3 | M type — 1 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C2.7
|
17:00 | 17:04 | 17:10 | 1319 |
|
C1.5
|
13:40 | 13:44 | 13:46 | 1319 |
|
M1.3
|
12:53 | 13:00 | 13:08 | 1319 |
|
C2.4
|
08:53 | 08:57 | 09:02 | 1324 |