Solar flares — Dec 18, 2021
The strongest solar flare in the day
Flare of C6.3 level (normal) — in 18:01
Solar activity index
Value for Dec 18, 2021 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Dec 17, 2021 to Dec 18, 2021
Time zone — UTC+00 (London)
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Dec 18, 2021
Total number of flares of class C and higher — 4 flares
C type — 2 | M type — 0 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C6.3
|
17:27 | 18:01 | 18:36 | 2807 |
|
B9.0
|
11:17 | 11:24 | 11:30 | 2807 |
|
C1.1
|
01:40 | 01:54 | 02:12 | 2909 |
|
B9.2
|
01:02 | 01:10 | 01:15 | — |