Solar flares on December 18, 2022
The most powerful solar flare in 24 hours
C5.8 (normal) flare - December 18 at 3:10 AM
Solar activity index
Value as of the end of the day on December 18, 2022
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 17, 2022 to December 18, 2022
Time zone — UTC-07 (Phoenix)
List of solar flares for December 18, 2022
The total number of solar flares of class C and higher — 11 flares
C class — 11 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.1 | 23:22 | 23:29 | 23:37 | 3162 |
| C2.6 | 22:56 | 23:02 | 23:06 | 3171 |
| C2.5 | 20:32 | 20:43 | 20:54 | — |
| C2.5 | 19:14 | 19:23 | 19:27 | 3162 |
| C2.0 | 16:06 | 16:13 | 16:17 | 3170 |
| C3.2 | 12:53 | 13:02 | 13:15 | 3162 |
| C3.8 | 09:40 | 09:45 | 09:49 | 3169 |
| C4.7 | 07:06 | 07:14 | 07:19 | 3169 |
| C2.3 | 06:11 | 06:16 | 06:20 | 3169 |
| C5.8 | 02:59 | 03:10 | 03:16 | 3162 |
| C2.4 | 02:34 | 02:42 | 02:49 | 3169 |