Solar flares on December 9, 2025
The most powerful solar flare in 24 hours
M1.6 (strong) flare - December 9 at 1:47 AM
Solar activity index
Value as of the end of the day on December 9, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 8, 2025 to December 9, 2025
Time zone — UTC-06 (Winnipeg)
List of solar flares for December 9, 2025
The total number of solar flares of class C and higher — 24 flares
C class — 20 | M class — 4 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.1 | 23:33 | 23:38 | 23:43 | 4294 |
| C4.1 | 22:57 | 23:03 | 23:07 | 4296 |
| M1.2 | 22:17 | 22:22 | 22:27 | 4294 |
| C9.5 | 21:17 | 21:24 | 21:30 | 4296 |
| C6.5 | 21:05 | 21:13 | 21:17 | 4304 |
| C8.0 | 20:31 | 20:47 | 20:54 | 4294 |
| C7.8 | 19:20 | 19:25 | 19:30 | 4294 |
| M1.5 | 17:13 | 17:27 | 17:36 | 4296 |
| C3.7 | 16:32 | 16:38 | 16:43 | 4305 |
| C5.0 | 15:30 | 15:42 | 16:03 | 4294 |
| C3.4 | 14:53 | 15:09 | 15:21 | 4294 |
| C3.9 | 12:51 | 13:12 | 13:31 | 4294 |
| C3.8 | 11:18 | 11:24 | 11:27 | 4294 |
| C3.8 | 11:10 | 11:15 | 11:18 | 4294 |
| C3.7 | 10:52 | 11:02 | 11:10 | 4294 |
| M1.5 | 09:00 | 09:14 | 09:20 | 4294 |
| C5.6 | 07:27 | 07:35 | 07:43 | 4294 |
| C4.8 | 07:15 | 07:25 | 07:27 | 4294 |
| C3.9 | 06:35 | 06:41 | 06:55 | 4294 |
| C6.0 | 05:58 | 06:06 | 06:10 | 4294 |
| C4.0 | 05:48 | 05:55 | 05:58 | 4294 |
| C2.7 | 05:29 | 05:42 | 05:48 | 4294 |
| C4.2 | 03:56 | 04:04 | 04:08 | 4294 |
| M1.6 | 01:41 | 01:47 | 01:51 | 4294 |