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