Solar flares on September 8, 2025
The most powerful solar flare in 24 hours
C1.2 (normal) flare - September 8 at 5:30 PM
Solar activity index
Value as of the end of the day on September 8, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 7, 2025 to September 8, 2025
Time zone — UTC+01 (Lisbon) — summer time
List of solar flares for September 8, 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 |
|---|---|---|---|---|
| C1.1 | 20:14 | 20:21 | 20:26 | 4207 |
| C1.2 | 17:22 | 17:30 | 17:33 | 4213 |
| C1.0 | 15:36 | 15:45 | 15:54 | — |
| C1.1 | 13:53 | 14:01 | 14:07 | 4213 |
| C1.0 | 13:12 | 13:17 | 13:21 | 4213 |
| C1.0 | 05:33 | 05:47 | 06:24 | 4211 |
| C1.2 | 04:27 | 04:56 | 05:21 | 4212 |
| C1.2 | 03:16 | 03:49 | 04:06 | 4212 |