Solar flares — Dec 21, 2021
The strongest solar flare in the day
Flare of M1.4 level (strong) — in 11:44
Solar activity index
Value for Dec 21, 2021 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Dec 20, 2021 to Dec 21, 2021
Time zone — UTC+00 (London)
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Dec 21, 2021
Total number of flares of class C and higher — 13 flares
C type — 11 | M type — 2 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C4.9
|
22:29 | 22:37 | 23:08 | — |
|
C3.9
|
20:36 | 20:48 | 21:00 | — |
|
C4.9
|
19:02 | 19:23 | 19:53 | 2909 |
|
C4.9
|
17:35 | 17:50 | 18:04 | 2908 |
|
C2.0
|
15:44 | 15:53 | 15:58 | 2916 |
|
C1.0
|
13:45 | 13:52 | 14:00 | 2908 |
|
M1.4
|
11:31 | 11:44 | 11:49 | 2916 |
|
M1.1
|
07:43 | 07:50 | 07:57 | 2916 |
|
C4.9
|
07:06 | 07:22 | 07:34 | 2908 |
|
C4.0
|
05:58 | 06:10 | 06:19 | 2908 |
|
C3.3
|
04:48 | 05:00 | 05:09 | 2908 |
|
C2.8
|
03:40 | 03:44 | 03:52 | 2908 |
|
C5.5
|
01:44 | 01:57 | 02:12 | 2907 |