Solar flares on December 5, 2025
The most powerful solar flare in 24 hours
C6.4 (normal) flare - December 5 at 6:09 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-09 (Hooper Bay)
List of solar flares for December 5, 2025
The total number of solar flares of class C and higher — 15 flares
C class — 15 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.9 | 20:57 | 21:02 | 21:05 | 4294 |
| C1.8 | 19:33 | 19:41 | 19:46 | 4294 |
| C6.4 | 17:55 | 18:09 | 18:21 | 4294 |
| C5.7 | 16:15 | 16:23 | 16:31 | 4297 |
| C2.3 | 15:32 | 15:35 | 15:40 | 4294 |
| C5.2 | 13:36 | 13:48 | 14:06 | 4296 |
| C2.3 | 12:11 | 12:16 | 12:19 | 4296 |
| C2.5 | 11:52 | 12:03 | 12:11 | 4296 |
| C3.8 | 11:01 | 11:11 | 11:17 | 4294 |
| C2.5 | 09:55 | 10:02 | 10:05 | 4294 |
| C2.4 | 09:40 | 09:51 | 09:55 | — |
| C2.4 | 09:27 | 09:33 | 09:35 | 4294 |
| C2.5 | 08:45 | 08:54 | 09:03 | 4294 |
| C4.3 | 07:15 | 07:26 | 07:38 | 4294 |
| C2.6 | 00:36 | 00:44 | 00:49 | 4299 |