Solar flares on September 6, 2025
The most powerful solar flare in 24 hours
C6.5 (normal) flare - September 6 at 8:54 PM
Solar activity index
Value as of the end of the day on September 6, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 5, 2025 to September 6, 2025
Time zone — UTC+02 (Oslo) — summer time
List of solar flares for September 6, 2025
The total number of solar flares of class C and higher — 8 flares
C class — 8 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C6.5 | 20:49 | 20:54 | 20:56 | 4207 |
| C4.9 | 12:30 | 12:41 | 12:44 | 4197 |
| C1.8 | 10:19 | 10:22 | 10:25 | 4197 |
| C4.5 | 06:44 | 06:52 | 06:58 | 4207 |
| C3.5 | 06:06 | 06:14 | 06:18 | 4202 |
| C2.0 | 05:52 | 06:03 | 06:06 | 4207 |
| C2.3 | 03:34 | 03:42 | 03:47 | 4207 |
| C2.4 | 02:39 | 02:46 | 02:48 | — |