Solar flares on September 5, 2025
The most powerful solar flare in 24 hours
M1.4 (strong) flare - September 5 at 2:16 AM
Solar activity index
Value as of the end of the day on September 5, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 4, 2025 to September 5, 2025
Time zone — UTC+01 (London) — summer time
List of solar flares for September 5, 2025
The total number of solar flares of class C and higher — 3 flares
C class — 2 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.2 | 11:05 | 11:14 | 11:22 | 4197 |
| M1.4 | 02:08 | 02:16 | 02:21 | 4207 |
| C3.3 | 00:23 | 00:36 | 01:07 | 4210 |