Solar flares on December 17, 2023
The most powerful solar flare in 24 hours
M1.1 (strong) flare - December 17 at 12:17 PM
Solar activity index
Value as of the end of the day on December 17, 2023
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 16, 2023 to December 17, 2023
Time zone — UTC-08 (San Jose)
List of solar flares for December 17, 2023
The total number of solar flares of class C and higher — 11 flares
C class — 10 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.2 | 19:57 | 20:08 | 20:21 | 3526 |
| C2.1 | 19:35 | 19:40 | 19:49 | 3519 |
| C6.0 | 18:44 | 18:55 | 19:00 | 3524 |
| C2.1 | 17:23 | 17:28 | 17:33 | 3514 |
| C2.2 | 16:23 | 16:26 | 16:31 | 3519 |
| C4.8 | 13:23 | 13:32 | 13:43 | 3526 |
| M1.1 | 12:08 | 12:17 | 12:21 | 3514 |
| C3.8 | 10:04 | 10:21 | 10:31 | 3514 |
| C3.5 | 10:01 | 10:14 | 10:35 | 3514 |
| C3.3 | 09:06 | 09:29 | 09:50 | 3524 |
| C2.1 | 02:19 | 02:25 | 02:31 | 3514 |