Solar flares on October 5, 2025
The most powerful solar flare in 24 hours
C2.1 (normal) flare - October 5 at 2:23 AM
Solar activity index
Value as of the end of the day on October 5, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 4, 2025 to October 5, 2025
Time zone — UTC+03 (Tver)
List of solar flares for October 5, 2025
The total number of solar flares of class C and higher — 2 flares
C class — 2 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.1 | 02:17 | 02:23 | 02:26 | 4241 |
| C2.0 | 01:02 | 01:05 | 01:11 | — |