Solar flares — Sep 21, 2011
The strongest solar flare in the day
Flare of M1.8 level (strong) — in 12:23
Solar activity index
Value for Sep 21, 2011 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Sep 20, 2011 to Sep 21, 2011
Time zone — UTC+00 (London)
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Sep 21, 2011
Total number of flares of class C and higher — 10 flares
C type — 9 | M type — 1 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C2.0
|
20:31 | 20:36 | 20:40 | 1295 |
|
C2.1
|
16:47 | 16:49 | 16:51 | — |
|
C2.3
|
16:13 | 16:16 | 16:20 | — |
|
C2.8
|
15:21 | 15:26 | 15:30 | 1295 |
|
C2.7
|
14:37 | 14:38 | 14:41 | 1295 |
|
C2.6
|
14:21 | 14:23 | 14:26 | 1295 |
|
M1.8
|
12:04 | 12:23 | 12:45 | 1302 |
|
C3.9
|
11:17 | 11:24 | 11:28 | 1301 |
|
C1.9
|
07:37 | 07:41 | 07:47 | 1295 |
|
C2.7
|
00:55 | 01:07 | 01:14 | 1301 |