Solar flares on December 5, 2025
The most powerful solar flare in 24 hours
C7.3 (normal) flare - December 5 at 5:09 AM
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+03 (Meshchovsk)
List of solar flares for December 5, 2025
The total number of solar flares of class C and higher — 12 flares
C class — 12 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.8 | 23:01 | 23:11 | 23:17 | 4294 |
| C2.5 | 21:55 | 22:02 | 22:05 | 4294 |
| C2.4 | 21:40 | 21:51 | 21:55 | — |
| C2.4 | 21:27 | 21:33 | 21:35 | 4294 |
| C2.5 | 20:45 | 20:54 | 21:03 | 4294 |
| C4.3 | 19:15 | 19:26 | 19:38 | 4294 |
| C2.6 | 12:36 | 12:44 | 12:49 | 4299 |
| C2.7 | 10:39 | 10:45 | 10:50 | 4298 |
| C7.3 | 04:42 | 05:09 | 10:39 | 4299 |
| C3.9 | 03:02 | 03:11 | 03:26 | 4294 |
| C6.8 | 02:18 | 02:24 | 02:31 | 4296 |
| C3.7 | 02:13 | 02:16 | 02:18 | 4296 |