Solar flares on December 6, 2025
The most powerful solar flare in 24 hours
M8.1 (strong) flare - December 6 at 8:39 PM
Solar activity index
Value as of the end of the day on December 6, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 5, 2025 to December 6, 2025
Time zone — UTC+00 (London)
List of solar flares for December 6, 2025
The total number of solar flares of class C and higher — 12 flares
C class — 10 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M8.1 | 20:29 | 20:39 | 20:49 | 4299 |
| M1.1 | 18:58 | 19:21 | 19:36 | 4299 |
| C1.8 | 17:19 | 17:32 | 17:43 | 4294 |
| C1.6 | 16:54 | 16:58 | 17:02 | 4299 |
| C2.0 | 12:00 | 12:04 | 12:06 | — |
| C1.9 | 11:50 | 11:57 | 12:00 | — |
| C3.6 | 09:36 | 09:45 | 09:50 | 4298 |
| C1.9 | 05:57 | 06:02 | 06:05 | 4294 |
| C1.8 | 04:33 | 04:41 | 04:46 | 4294 |
| C6.4 | 02:55 | 03:09 | 03:21 | 4294 |
| C5.7 | 01:15 | 01:23 | 01:31 | 4297 |
| C2.3 | 00:32 | 00:35 | 00:40 | 4294 |