Solar flares on September 26, 2025
The most powerful solar flare in 24 hours
M1.6 (strong) flare - September 26 at 8:01 PM
Solar activity index
Value as of the end of the day on September 26, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 25, 2025 to September 26, 2025
Time zone — UTC+00
List of solar flares for September 26, 2025
The total number of solar flares of class C and higher — 10 flares
C class — 9 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.8 | 23:11 | 23:15 | 23:21 | 4217 |
| C4.0 | 22:21 | 22:27 | 22:32 | 4233 |
| C4.0 | 20:45 | 20:55 | 21:01 | 4233 |
| M1.6 | 19:49 | 20:01 | 20:07 | 4233 |
| C7.8 | 18:53 | 19:05 | 19:14 | 4221 |
| C2.9 | 17:06 | 17:16 | 17:23 | 4233 |
| C2.5 | 10:04 | 10:19 | 10:40 | 4227 |
| C2.4 | 06:14 | 06:28 | 06:39 | 4232 |
| C1.9 | 04:25 | 04:34 | 04:50 | 4232 |
| C1.9 | 03:52 | 04:02 | 04:10 | 4217 |