Solar flares on December 28, 2021
The most powerful solar flare in 24 hours
M1.8 (strong) flare - December 28 at 7:01 AM
Solar activity index
Value as of the end of the day on December 28, 2021
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 27, 2021 to December 28, 2021
Time zone — UTC+03 (Ivanovo)
List of solar flares for December 28, 2021
The total number of solar flares of class C and higher — 9 flares
C class — 7 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.6 | 18:59 | 19:11 | 19:20 | 2918 |
| C1.0 | 18:03 | 18:14 | 18:32 | 2918 |
| C7.0 | 10:29 | 10:44 | 10:57 | 2918 |
| C1.3 | 09:11 | 09:18 | 09:23 | — |
| M1.8 | 06:50 | 07:01 | 07:10 | 2918 |
| C2.7 | 05:19 | 05:36 | 05:46 | 2918 |
| C1.3 | 03:39 | 03:47 | 03:51 | — |
| C1.2 | 03:25 | 03:32 | 03:36 | — |
| C2.2 | 02:28 | 02:35 | 02:42 | 2918 |