Solar flares on October 31, 2021
The most powerful solar flare in 24 hours
C3.2 (normal) flare - October 31 at 8:00 PM
Solar activity index
Value as of the end of the day on October 31, 2021
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 30, 2021 to October 31, 2021
Time zone — UTC+00
List of solar flares for October 31, 2021
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 |
|---|---|---|---|---|
| C3.2 | 19:51 | 20:00 | 20:04 | 2887 |
| C1.2 | 18:16 | 18:27 | 18:32 | 2887 |
| C2.9 | 06:53 | 07:06 | 07:12 | 2891 |
| C1.7 | 03:20 | 03:24 | 03:30 | 2891 |