Solar flares — Apr 21, 2013
The strongest solar flare in the day
Flare of C4.5 level (normal) — in 18:39
Solar activity index
Value for Apr 21, 2013 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Apr 20, 2013 to Apr 21, 2013
Time zone — UTC+00 (London)
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Apr 21, 2013
Total number of flares of class C and higher — 17 flares
C type — 13 | M type — 0 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
B7.8
|
23:46 | 23:50 | 23:54 | 1726 |
|
C2.7
|
19:59 | 20:15 | 20:32 | 1723 |
|
C4.5
|
18:35 | 18:39 | 18:42 | 1726 |
|
C2.9
|
16:00 | 16:03 | 16:06 | 1726 |
|
C2.2
|
14:16 | 14:20 | 14:23 | 1726 |
|
C1.0
|
11:38 | 12:03 | 12:09 | 1726 |
|
C1.0
|
10:52 | 10:55 | 10:57 | 1726 |
|
C1.8
|
10:21 | 10:24 | 10:26 | 1726 |
|
C2.5
|
09:20 | 09:23 | 09:27 | 1726 |
|
C1.3
|
07:30 | 07:34 | 07:40 | 1726 |
|
B8.7
|
07:07 | 07:10 | 07:20 | 1726 |
|
C2.7
|
05:57 | 06:00 | 06:02 | 1726 |
|
C1.4
|
05:04 | 05:14 | 05:18 | 1726 |
|
C1.0
|
02:56 | 03:00 | 03:02 | 1726 |
|
B8.4
|
02:48 | 02:51 | 02:54 | 1726 |
|
B7.0
|
02:26 | 02:29 | 02:37 | 1726 |
|
C3.6
|
01:02 | 01:09 | 01:16 | 1726 |