Solar flares — Sep 20, 2021
The strongest solar flare in the day
Flare of B8.1 level () — in 09:36
Solar activity index
Value for Sep 20, 2021 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Sep 19, 2021 to Sep 20, 2021
Time zone — UTC+00 (London)
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Sep 20, 2021
Total number of flares of class C and higher — 19 flares
C type — 0 | M type — 0 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
B2.6
|
23:04 | 23:11 | 23:21 | 2871 |
|
B3.3
|
21:37 | 21:42 | 21:46 | 2871 |
|
B2.5
|
20:55 | 21:00 | 21:04 | 2871 |
|
B1.6
|
20:40 | 20:44 | 20:49 | — |
|
B2.1
|
19:38 | 19:41 | 19:45 | — |
|
B4.0
|
19:17 | 19:25 | 19:29 | — |
|
B2.4
|
19:01 | 19:09 | 19:16 | — |
|
B1.5
|
18:18 | 18:26 | 18:33 | — |
|
B1.0
|
17:11 | 17:16 | 17:20 | — |
|
B1.3
|
14:05 | 14:11 | 14:16 | — |
|
B2.3
|
13:39 | 13:48 | 13:54 | — |
|
B1.4
|
12:52 | 12:58 | 13:02 | — |
|
B6.3
|
10:38 | 10:43 | 10:48 | 2871 |
|
B8.1
|
09:24 | 09:36 | 09:43 | 2871 |
|
B2.4
|
09:00 | 09:15 | 09:20 | 2871 |
|
B1.0
|
08:23 | 08:30 | 08:34 | 2871 |
|
B2.2
|
07:53 | 08:02 | 08:06 | 2871 |
|
B1.1
|
06:25 | 06:29 | 06:34 | 2871 |
|
B1.1
|
05:56 | 06:15 | 06:21 | 2871 |