Solar flares on December 4, 2021
The most powerful solar flare in 24 hours
C7.1 (normal) flare - December 4 at 11:59 PM
Solar activity index
Value as of the end of the day on December 4, 2021
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 3, 2021 to December 4, 2021
Time zone — UTC+00
List of solar flares for December 4, 2021
The total number of solar flares of class C and higher — 11 flares
C class — 11 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C7.1 | 23:21 | 23:59 | 00:14 | 2898 |
| C1.6 | 22:07 | 22:15 | 22:25 | 2898 |
| C1.3 | 19:30 | 19:41 | 19:51 | 2898 |
| C1.8 | 15:48 | 15:59 | 16:12 | 2898 |
| C1.8 | 15:04 | 15:34 | 15:48 | 2898 |
| C1.0 | 10:05 | 10:09 | 10:15 | 2898 |
| C1.2 | 08:19 | 08:26 | 08:34 | 2898 |
| C2.3 | 07:34 | 07:54 | 08:00 | 2898 |
| C1.4 | 07:14 | 07:24 | 07:31 | 2898 |
| C2.5 | 06:44 | 06:52 | 06:56 | 2898 |
| C4.2 | 04:43 | 05:15 | 05:34 | 2898 |