Solar flares on December 18, 2023
The most powerful solar flare in 24 hours
C7.3 (normal) flare - December 18 at 7:04 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-08 (Kamloops)
List of solar flares for December 18, 2023
The total number of solar flares of class C and higher — 7 flares
C class — 7 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.7 | 22:20 | 22:38 | 22:47 | 3528 |
| C7.3 | 18:56 | 19:04 | 19:09 | 3528 |
| C4.6 | 18:42 | 18:52 | 18:56 | 3528 |
| C4.0 | 12:27 | 12:36 | 12:42 | 3526 |
| C4.5 | 11:15 | 11:25 | 11:30 | 3528 |
| C4.4 | 07:06 | 07:21 | 07:26 | — |
| C6.5 | 06:13 | 06:22 | 06:30 | 3528 |