Solar flares on December 20, 2024
The most powerful solar flare in 24 hours
M2.5 (strong) flare - December 20 at 11:18 AM
Solar activity index
Value as of the end of the day on December 20, 2024
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 19, 2024 to December 20, 2024
Time zone — UTC+00
List of solar flares for December 20, 2024
The total number of solar flares of class C and higher — 11 flares
C class — 9 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.8 | 22:36 | 22:45 | 22:56 | 3929 |
| C4.5 | 16:46 | 16:49 | 16:53 | 3932 |
| M2.5 | 11:15 | 11:18 | 11:22 | 3928 |
| C2.9 | 10:34 | 10:38 | 10:43 | 3928 |
| C9.4 | 10:03 | 10:11 | 10:17 | 3932 |
| C9.4 | 08:55 | 09:01 | 09:06 | 3928 |
| M2.1 | 07:20 | 07:26 | 07:35 | 3924 |
| C3.0 | 06:54 | 07:04 | 07:14 | 3924 |
| C2.7 | 05:43 | 05:46 | 05:51 | 3928 |
| C2.6 | 01:54 | 02:01 | 02:08 | — |
| C2.6 | 01:33 | 01:40 | 01:44 | 3928 |