Solar flares on December 15, 2021
The most powerful solar flare in 24 hours
C8.1 (normal) flare - December 15 at 10:44 AM
Solar activity index
Value as of the end of the day on December 15, 2021
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 14, 2021 to December 15, 2021
Time zone — UTC+00
List of solar flares for December 15, 2021
The total number of solar flares of class C and higher — 15 flares
C class — 15 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.4 | 14:27 | 14:34 | 14:38 | 2907 |
| C1.5 | 14:09 | 14:13 | 14:21 | 2907 |
| C2.6 | 12:08 | 12:17 | 12:26 | 2907 |
| C8.1 | 10:31 | 10:44 | 10:48 | 2907 |
| C2.2 | 10:13 | 10:22 | 10:31 | 2907 |
| C1.7 | 10:04 | 10:10 | 10:13 | 2907 |
| C1.5 | 09:05 | 09:22 | 09:34 | 2907 |
| C1.6 | 08:38 | 08:52 | 09:05 | 2907 |
| C1.6 | 06:08 | 06:12 | 06:16 | 2907 |
| C1.7 | 05:48 | 05:58 | 06:08 | 2907 |
| C2.8 | 04:48 | 04:54 | 04:58 | 2907 |
| C4.5 | 04:07 | 04:21 | 04:32 | 2907 |
| C1.9 | 03:38 | 03:46 | 03:51 | 2907 |
| C2.8 | 02:57 | 03:04 | 03:09 | 2907 |
| C2.1 | 01:36 | 01:46 | 01:55 | 2907 |