Solar flares — Sep 21, 2020
The strongest solar flare in the day
Flare of B4.3 level () — in 12:42
Solar activity index
Value for Sep 21, 2020 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Sep 20, 2020 to Sep 21, 2020
Time zone — UTC+00 (London)

This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Sep 21, 2020
Total number of flares of class C and higher — 14 flares
C type — 0 | M type — 0 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
B1.4
|
19:32 | 19:45 | 19:57 | — |
B1.4
|
16:41 | 16:49 | 16:53 | — |
B1.6
|
16:34 | 16:37 | 16:41 | — |
B1.1
|
13:52 | 13:58 | 14:05 | — |
B2.1
|
13:18 | 13:25 | 13:30 | — |
B4.3
|
12:24 | 12:42 | 12:52 | — |
B3.1
|
10:49 | 10:52 | 11:03 | — |
B2.6
|
10:05 | 10:18 | 10:26 | — |
B2.1
|
09:40 | 09:57 | 10:05 | — |
B2.0
|
08:44 | 08:48 | 08:52 | — |
B1.2
|
07:02 | 07:07 | 07:13 | — |
B1.7
|
02:07 | 02:13 | 02:18 | — |
B1.4
|
01:56 | 02:01 | 02:05 | — |
B1.1
|
00:46 | 00:51 | 00:55 | — |