Solar flares on December 8, 2025
The most powerful solar flare in 24 hours
X1.1 (very strong) flare - December 8 at 9:01 AM
Solar activity index
Value as of the end of the day on December 8, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 7, 2025 to December 8, 2025
Time zone — UTC+04 (Samara)
List of solar flares for December 8, 2025
The total number of solar flares of class C and higher — 20 flares
C class — 15 | M class — 4 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.4 | 21:58 | 22:11 | 22:22 | 4304 |
| C4.7 | 19:47 | 19:54 | 19:57 | 4294 |
| C3.7 | 19:00 | 19:05 | 19:09 | 4294 |
| C4.8 | 17:57 | 18:06 | 18:14 | 4304 |
| M1.0 | 16:42 | 17:05 | 17:21 | 4294 |
| C5.2 | 16:19 | 16:28 | 16:36 | 4294 |
| C8.0 | 12:50 | 12:57 | 13:06 | 4294 |
| M1.8 | 10:40 | 10:54 | 11:04 | 4304 |
| C3.5 | 09:20 | 09:26 | 09:30 | 4304 |
| X1.1 | 08:49 | 09:01 | 09:04 | 4298 |
| C6.2 | 08:17 | 08:27 | 08:32 | 4296 |
| C4.1 | 07:40 | 07:46 | 07:51 | 4294 |
| C3.6 | 06:47 | 06:57 | 07:05 | 4296 |
| C2.7 | 05:40 | 05:44 | 05:48 | 4294 |
| M2.0 | 04:33 | 04:36 | 04:39 | 4294 |
| M2.4 | 03:56 | 04:12 | 04:23 | 4299 |
| C6.7 | 02:40 | 02:48 | 02:52 | 4298 |
| C3.1 | 02:32 | 02:36 | 02:39 | 4294 |
| C5.4 | 01:18 | 01:22 | 01:24 | 4294 |
| C6.3 | 00:41 | 00:46 | 00:48 | 4298 |