Solar flares — Dec 15, 2021
The strongest solar flare in the day
Flare of C8.1 level (normal) — in 10:44
Solar activity index
Value for Dec 15, 2021 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Dec 14, 2021 to Dec 15, 2021
Time zone — UTC+00 (London)

This chart in PNG format — high resolution
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List of solar flares for Dec 15, 2021
Total number of flares of class C and higher — 16 flares
C type — 15 | M type — 0 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
B7.4
|
17:16 | 17:23 | 17:32 | 2907 |
C4.4
|
14:27 | 14:34 | 14:38 | 2907 |
C1.5
|
14:09 | 14:13 | 14:21 | 2907 |
C2.6
|
12:08 | 12:17 | 12:26 | 2907 |
C8.1
|
10:31 | 10:44 | 10:48 | 2907 |
C2.2
|
10:13 | 10:22 | 10:31 | 2907 |
C1.7
|
10:04 | 10:10 | 10:13 | 2907 |
C1.5
|
09:05 | 09:22 | 09:34 | 2907 |
C1.6
|
08:38 | 08:52 | 09:05 | 2907 |
C1.6
|
06:08 | 06:12 | 06:16 | 2907 |
C1.7
|
05:48 | 05:58 | 06:08 | 2907 |
C2.8
|
04:48 | 04:54 | 04:58 | 2907 |
C4.5
|
04:07 | 04:21 | 04:32 | 2907 |
C1.9
|
03:38 | 03:46 | 03:51 | 2907 |
C2.8
|
02:57 | 03:04 | 03:09 | 2907 |
C2.1
|
01:36 | 01:46 | 01:55 | 2907 |