Solar flares — Sep 09, 2025
The strongest solar flare in the day
Flare of C1.6 level (normal) — in 14:55
Solar activity index
Value for Sep 09, 2025 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Sep 08, 2025 to Sep 09, 2025
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 09, 2025
Total number of flares of class C and higher — 2 flares
C type — 2 | M type — 0 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
C1.6
|
14:47 | 14:55 | 15:00 | 4210 |
C1.5
|
04:17 | 04:23 | 04:26 | 4207 |