Solar flares on December 7, 2025
The most powerful solar flare in 24 hours
C7.5 (normal) flare - December 7 at 12:04 PM
Solar activity index
Value as of the end of the day on December 7, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 6, 2025 to December 7, 2025
Time zone — UTC+00
List of solar flares for December 7, 2025
The total number of solar flares of class C and higher — 18 flares
C class — 18 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C6.7 | 22:40 | 22:48 | 22:52 | 4298 |
| C3.1 | 22:32 | 22:36 | 22:39 | 4294 |
| C5.4 | 21:18 | 21:22 | 21:24 | 4294 |
| C6.3 | 20:41 | 20:46 | 20:48 | 4298 |
| C3.7 | 19:02 | 19:12 | 19:17 | 4294 |
| C2.6 | 18:02 | 18:09 | 18:16 | 4294 |
| C4.9 | 17:22 | 17:31 | 17:35 | 4294 |
| C2.3 | 17:00 | 17:04 | 17:06 | — |
| C3.4 | 13:19 | 13:25 | 13:27 | — |
| C7.5 | 11:51 | 12:04 | 12:08 | 4294 |
| C2.7 | 10:11 | 10:15 | 10:18 | 4294 |
| C2.8 | 09:31 | 09:38 | 09:45 | 4296 |
| C2.5 | 09:11 | 09:16 | 09:18 | 4294 |
| C3.4 | 08:06 | 08:11 | 08:13 | 4296 |
| C4.4 | 07:40 | 07:44 | 07:46 | 4294 |
| C2.7 | 07:12 | 07:17 | 07:25 | 4294 |
| C2.5 | 03:20 | 03:31 | 03:40 | 4296 |
| C2.2 | 00:47 | 00:54 | 01:06 | 4296 |