Solar flares — Sep 23, 2025
The strongest solar flare in the day
Flare of M1.0 level (strong) — in 11:34
Solar activity index
Value for Sep 23, 2025 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Sep 22, 2025 to Sep 23, 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 23, 2025
Total number of flares of class C and higher — 4 flares
C type — 3 | M type — 1 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C2.0
|
23:34 | 23:43 | 23:54 | 4224 |
|
C1.9
|
19:17 | 19:25 | 19:41 | 4230 |
|
M1.0
|
11:24 | 11:34 | 11:38 | 4217 |
|
C2.5
|
10:07 | 10:20 | 10:34 | 4228 |