Solar flares on December 18, 2023
The most powerful solar flare in 24 hours
C7.3 (normal) flare - December 18 at 10:04 PM
Solar activity index
Value as of the end of the day on December 18, 2023
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 17, 2023 to December 18, 2023
Time zone — UTC-05 (Toronto)
List of solar flares for December 18, 2023
The total number of solar flares of class C and higher — 6 flares
C class — 6 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C7.3 | 21:56 | 22:04 | 22:09 | 3528 |
| C4.6 | 21:42 | 21:52 | 21:56 | 3528 |
| C4.0 | 15:27 | 15:36 | 15:42 | 3526 |
| C4.5 | 14:15 | 14:25 | 14:30 | 3528 |
| C4.4 | 10:06 | 10:21 | 10:26 | — |
| C6.5 | 09:13 | 09:22 | 09:30 | 3528 |