Solar flares — Dec 13, 2021
The strongest solar flare in the day
Flare of B3.6 level () — in 21:30
Solar activity index
Value for Dec 13, 2021 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Dec 12, 2021 to Dec 13, 2021
Time zone — UTC+00 (London)
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Dec 13, 2021
Total number of flares of class C and higher — 7 flares
C type — 0 | M type — 0 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
B2.0
|
23:33 | 23:42 | 23:50 | — |
|
B3.6
|
21:11 | 21:30 | 21:42 | — |
|
B1.7
|
20:58 | 21:10 | 21:11 | 2907 |
|
B3.0
|
19:12 | 19:23 | 19:30 | 2907 |
|
B1.8
|
17:31 | 17:38 | 17:45 | 2907 |
|
B2.8
|
16:24 | 16:37 | 16:44 | 2907 |
|
B1.4
|
06:17 | 06:25 | 06:32 | — |