Solar flares on December 2, 2025
The most powerful solar flare in 24 hours
C5.4 (normal) flare - December 2 at 8:38 PM
Solar activity index
Value as of the end of the day on December 2, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 1, 2025 to December 2, 2025
Time zone — UTC+00 (London)
List of solar flares for December 2, 2025
The total number of solar flares of class C and higher — 9 flares
C class — 9 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C5.4 | 20:32 | 20:38 | 20:43 | 4288 |
| C4.0 | 17:35 | 17:44 | 17:48 | 4298 |
| C2.0 | 15:57 | 16:02 | 16:07 | 4288 |
| C3.5 | 14:06 | 14:09 | 14:13 | 4298 |
| C2.7 | 12:28 | 12:31 | 12:33 | 4288 |
| C2.6 | 12:12 | 12:21 | 12:28 | 4288 |
| C2.9 | 10:37 | 10:40 | 10:44 | 4294 |
| C3.9 | 05:29 | 05:35 | 05:39 | 4296 |
| C3.9 | 05:14 | 05:22 | 05:29 | 4296 |