Solar flares — Sep 21, 2021
The strongest solar flare in the day
Flare of C1.8 level (normal) — in 12:53
Solar activity index
Value for Sep 21, 2021 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Sep 20, 2021 to Sep 21, 2021
Time zone — UTC+01 (London) - summer time
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Sep 21, 2021
Total number of flares of class C and higher — 3 flares
C type — 3 | M type — 0 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C1.1
|
19:18 | 19:28 | 19:35 | 2871 |
|
C1.8
|
12:43 | 12:53 | 12:57 | 2873 |
|
C1.1
|
09:53 | 10:03 | 10:16 | 2873 |