Solar flares on September 11, 2025
The most powerful solar flare in 24 hours
C7.6 (normal) flare - September 11 at 8:51 PM
Solar activity index
Value as of the end of the day on September 11, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 10, 2025 to September 11, 2025
Time zone — UTC+05:30 (Nerkunram)
List of solar flares for September 11, 2025
The total number of solar flares of class C and higher — 4 flares
C class — 4 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.9 | 22:33 | 22:37 | 22:40 | 4207 |
| C7.6 | 20:39 | 20:51 | 21:03 | 4207 |
| C1.0 | 09:34 | 09:39 | 09:41 | 4207 |
| C1.1 | 08:47 | 08:57 | 09:34 | 4207 |