Solar flares on December 5, 2025
The most powerful solar flare in 24 hours
C6.4 (normal) flare - December 5 at 8:09 PM
Solar activity index
Value as of the end of the day on December 5, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 4, 2025 to December 5, 2025
Time zone — UTC-07 (Fort Smith)
List of solar flares for December 5, 2025
The total number of solar flares of class C and higher — 16 flares
C class — 16 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.9 | 22:57 | 23:02 | 23:05 | 4294 |
| C1.8 | 21:33 | 21:41 | 21:46 | 4294 |
| C6.4 | 19:55 | 20:09 | 20:21 | 4294 |
| C5.7 | 18:15 | 18:23 | 18:31 | 4297 |
| C2.3 | 17:32 | 17:35 | 17:40 | 4294 |
| C5.2 | 15:36 | 15:48 | 16:06 | 4296 |
| C2.3 | 14:11 | 14:16 | 14:19 | 4296 |
| C2.5 | 13:52 | 14:03 | 14:11 | 4296 |
| C3.8 | 13:01 | 13:11 | 13:17 | 4294 |
| C2.5 | 11:55 | 12:02 | 12:05 | 4294 |
| C2.4 | 11:40 | 11:51 | 11:55 | — |
| C2.4 | 11:27 | 11:33 | 11:35 | 4294 |
| C2.5 | 10:45 | 10:54 | 11:03 | 4294 |
| C4.3 | 09:15 | 09:26 | 09:38 | 4294 |
| C2.6 | 02:36 | 02:44 | 02:49 | 4299 |
| C2.7 | 00:39 | 00:45 | 00:50 | 4298 |