Solar flares on December 31, 2021
The most powerful solar flare in 24 hours
C4.5 (normal) flare - December 31 at 6:41 AM
Solar activity index
Value as of the end of the day on December 31, 2021
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 30, 2021 to December 31, 2021
Time zone — UTC+00
List of solar flares for December 31, 2021
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 |
|---|---|---|---|---|
| C4.5 | 06:26 | 06:41 | 06:46 | 2918 |
| C1.9 | 04:44 | 04:54 | 05:07 | 2918 |