Solar flares on September 10, 2025
The most powerful solar flare in 24 hours
C1.3 (normal) flare - September 10 at 5:25 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-04 (Fermont) — summer time
List of solar flares for September 10, 2025
The total number of solar flares of class C and higher — 3 flares
C class — 3 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.1 | 23:17 | 23:27 | 00:04 | 4207 |
| C1.0 | 11:44 | 11:52 | 11:59 | 4206 |
| C1.3 | 05:21 | 05:25 | 05:30 | 4207 |