Solar flares on December 23, 2025
The most powerful solar flare in 24 hours
C1.6 (normal) flare - December 23 at 2:50 AM
Solar activity index
Value as of the end of the day on December 23, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 22, 2025 to December 23, 2025
Time zone — UTC+01 (Brussels)
List of solar flares for December 23, 2025
The total number of solar flares of class C and higher — 5 flares
C class — 5 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.1 | 16:20 | 16:29 | 16:44 | 4317 |
| C1.5 | 10:45 | 10:56 | 11:04 | 4317 |
| C1.2 | 10:16 | 10:24 | 10:33 | 4316 |
| C1.6 | 02:37 | 02:50 | 03:02 | 4317 |
| C1.2 | 01:03 | 01:11 | 01:17 | 4317 |