Solar flares on September 7, 2025
The most powerful solar flare in 24 hours
C9.5 (normal) flare - September 7 at 12:47 AM
Solar activity index
Value as of the end of the day on September 7, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 6, 2025 to September 7, 2025
Time zone — UTC+00 (Reykjavik)
List of solar flares for September 7, 2025
The total number of solar flares of class C and higher — 14 flares
C class — 14 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.2 | 20:43 | 20:50 | 20:56 | 4207 |
| C4.0 | 17:56 | 18:13 | 18:45 | 4213 |
| C2.5 | 15:38 | 16:01 | 16:35 | 4213 |
| C1.4 | 14:28 | 15:01 | 15:29 | 4212 |
| C3.6 | 12:33 | 12:44 | 12:51 | 4207 |
| C3.4 | 10:39 | 10:50 | 11:15 | 4202 |
| C3.6 | 10:07 | 10:12 | 10:17 | 4207 |
| C2.7 | 09:25 | 09:40 | 10:04 | 4202 |
| C3.3 | 07:49 | 07:57 | 08:05 | 4207 |
| C3.6 | 06:43 | 06:55 | 07:20 | 4202 |
| C6.3 | 05:10 | 05:20 | 05:33 | 4207 |
| C3.0 | 04:45 | 05:00 | 05:13 | 4213 |
| C3.3 | 03:54 | 04:12 | 04:45 | 4213 |
| C9.5 | 00:38 | 00:47 | 00:50 | 4207 |