Solar flares on December 12, 2025
The most powerful solar flare in 24 hours
M2.0 (strong) flare - December 12 at 10:05 AM
Solar activity index
Value as of the end of the day on December 12, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 11, 2025 to December 12, 2025
Time zone — UTC+05 (Ufa)
List of solar flares for December 12, 2025
The total number of solar flares of class C and higher — 10 flares
C class — 8 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.2 | 22:22 | 22:57 | 23:29 | 4294 |
| C3.5 | 20:43 | 20:58 | 21:12 | 4294 |
| C2.8 | 19:37 | 19:47 | 19:51 | 4296 |
| C2.2 | 18:43 | 18:48 | 18:52 | 4294 |
| C2.6 | 14:10 | 14:19 | 14:29 | 4294 |
| M1.1 | 10:27 | 10:44 | 10:53 | 4294 |
| M2.0 | 09:50 | 10:05 | 10:14 | 4296 |
| C2.4 | 04:35 | 04:45 | 04:53 | 4305 |
| C2.3 | 03:26 | 03:32 | 03:35 | 4294 |
| C1.8 | 02:35 | 02:46 | 02:53 | 4296 |