Solar flares — Oct 20, 2025
The strongest solar flare in the day
Flare of M1.0 level (strong) — in 06:27
Solar activity index
Value for Oct 20, 2025 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Oct 19, 2025 to Oct 20, 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 Oct 20, 2025
Total number of flares of class C and higher — 5 flares
C type — 4 | M type — 1 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C3.0
|
16:14 | 16:45 | 17:23 | 4257 |
|
C2.6
|
10:47 | 10:55 | 10:59 | 4248 |
|
C3.5
|
08:39 | 08:48 | 09:20 | 4248 |
|
M1.0
|
06:10 | 06:27 | 06:38 | 4248 |
|
C5.9
|
03:24 | 03:34 | 03:47 | 4246 |