Solar flares on October 27, 2025
The most powerful solar flare in 24 hours
C1.7 (normal) flare - October 27 at 10:21 AM
Solar activity index
Value as of the end of the day on October 27, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 26, 2025 to October 27, 2025
Time zone — UTC+00 (Dublin)
List of solar flares for October 27, 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 |
|---|---|---|---|---|
| C1.7 | 10:03 | 10:21 | 10:35 | 4262 |
| C1.0 | 01:30 | 01:41 | 01:51 | 4262 |