Solar flares on September 10, 2025
The most powerful solar flare in 24 hours
C1.3 (normal) flare - September 10 at 1:25 AM
Solar activity index
Value as of the end of the day on September 10, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 9, 2025 to September 10, 2025
Time zone — UTC-08 (Anchorage) — summer time
List of solar flares for September 10, 2025
The total number of solar flares of class C and higher — 4 flares
C class — 4 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.0 | 20:04 | 20:09 | 20:11 | 4207 |
| C1.1 | 19:17 | 19:27 | 20:04 | 4207 |
| C1.0 | 07:44 | 07:52 | 07:59 | 4206 |
| C1.3 | 01:21 | 01:25 | 01:30 | 4207 |