Solar flares — Jun 28, 2025
The strongest solar flare in the day
Flare of C4.0 level (normal) — in 20:54
Solar activity index
Value for Jun 28, 2025 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Jun 27, 2025 to Jun 28, 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 Jun 28, 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 | |
|---|---|---|---|---|
|
C4.0
|
20:40 | 20:54 | 21:01 | 4126 |
|
C1.1
|
04:58 | 05:10 | 05:21 | 4126 |