Solar flares — Oct 21, 2021
The strongest solar flare in the day
Flare of B8.7 level () — in 15:15
Solar activity index
Value for Oct 21, 2021 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Oct 20, 2021 to Oct 21, 2021
Time zone — UTC+00 (London)
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Oct 21, 2021
Total number of flares of class C and higher — 16 flares
C type — 0 | M type — 0 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
B2.5
|
23:35 | 23:42 | 23:49 | 2887 |
|
B3.1
|
22:27 | 22:36 | 22:42 | 2887 |
|
B4.5
|
22:08 | 22:13 | 22:17 | 2887 |
|
B2.4
|
21:45 | 21:51 | 22:04 | 2887 |
|
B2.6
|
21:22 | 21:25 | 21:30 | 2887 |
|
B2.4
|
20:30 | 20:37 | 20:42 | 2887 |
|
B2.3
|
19:29 | 19:35 | 19:44 | 2887 |
|
B8.7
|
15:02 | 15:15 | 15:32 | 2887 |
|
B2.9
|
13:35 | 13:41 | 13:46 | 2887 |
|
B2.7
|
12:46 | 12:53 | 13:05 | 2887 |
|
B3.0
|
11:52 | 12:15 | 12:27 | 2887 |
|
B3.8
|
08:02 | 08:15 | 08:30 | 2887 |
|
B7.3
|
06:53 | 07:05 | 07:12 | 2887 |
|
B6.0
|
05:37 | 05:42 | 05:49 | 2887 |
|
B1.3
|
05:27 | 05:34 | 05:37 | 2887 |
|
B1.4
|
03:40 | 03:48 | 04:01 | 2887 |