Solar flares on December 16, 2021
The most powerful solar flare in 24 hours
C3.3 (normal) flare - December 16 at 6:27 PM
Solar activity index
Value as of the end of the day on December 16, 2021
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 15, 2021 to December 16, 2021
Time zone — UTC+03 (Ryazan)
List of solar flares for December 16, 2021
The total number of solar flares of class C and higher — 8 flares
C class — 8 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.9 | 23:29 | 23:44 | 00:06 | 2911 |
| C2.3 | 22:58 | 23:09 | 23:20 | 2911 |
| C3.3 | 18:19 | 18:27 | 18:31 | 2909 |
| C2.0 | 16:34 | 16:41 | 16:45 | 2911 |
| C1.4 | 16:23 | 16:32 | 16:34 | — |
| C1.5 | 08:06 | 08:21 | 08:36 | 2907 |
| C1.3 | 06:44 | 06:54 | 07:04 | 2909 |
| C1.4 | 06:26 | 06:34 | 06:41 | 2909 |