Solar flares on December 15, 2021
The most powerful solar flare in 24 hours
C8.1 (normal) flare - December 15 at 7:44 PM
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+09 (Yakutsk)
List of solar flares for December 15, 2021
The total number of solar flares of class C and higher — 22 flares
C class — 22 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.4 | 23:27 | 23:34 | 23:38 | 2907 |
| C1.5 | 23:09 | 23:13 | 23:21 | 2907 |
| C2.6 | 21:08 | 21:17 | 21:26 | 2907 |
| C8.1 | 19:31 | 19:44 | 19:48 | 2907 |
| C2.2 | 19:13 | 19:22 | 19:31 | 2907 |
| C1.7 | 19:04 | 19:10 | 19:13 | 2907 |
| C1.5 | 18:05 | 18:22 | 18:34 | 2907 |
| C1.6 | 17:38 | 17:52 | 18:05 | 2907 |
| C1.6 | 15:08 | 15:12 | 15:16 | 2907 |
| C1.7 | 14:48 | 14:58 | 15:08 | 2907 |
| C2.8 | 13:48 | 13:54 | 13:58 | 2907 |
| C4.5 | 13:07 | 13:21 | 13:32 | 2907 |
| C1.9 | 12:38 | 12:46 | 12:51 | 2907 |
| C2.8 | 11:57 | 12:04 | 12:09 | 2907 |
| C2.1 | 10:36 | 10:46 | 10:55 | 2907 |
| C6.0 | 08:44 | 08:49 | 08:56 | 2907 |
| C3.0 | 08:12 | 08:25 | 08:44 | 2907 |
| C1.6 | 06:55 | 07:06 | 07:12 | 2906 |
| C3.0 | 05:43 | 05:53 | 06:00 | 2907 |
| C1.6 | 05:23 | 05:33 | 05:43 | 2907 |
| C1.3 | 01:35 | 01:49 | 01:56 | 2907 |
| C1.1 | 00:51 | 01:03 | 01:20 | 2907 |