Solar flares on June 28, 2025
The most powerful solar flare in 24 hours
C4.0 (normal) flare - June 28 at 7:54 PM
Solar activity index
Value as of the end of the day on June 28, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from June 27, 2025 to June 28, 2025
Time zone — UTC+00
List of solar flares for June 28, 2025
The total number of solar flares of class C and higher — 2 flares
C class — 2 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.0 | 19:40 | 19:54 | 20:01 | 4126 |
| C1.1 | 03:58 | 04:10 | 04:21 | 4126 |