Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 2904 | S27 | E45 | 03 | 0030 | Beta | Dec 11, 2021 | Dec 18, 2021 | Jan 1, 2022 |
| № 2903 | S18 | W24 | 02 | 0010 | Beta | Dec 5, 2021 | Dec 12, 2021 | Dec 26, 2021 |
| № 2902 | N13 | W75 | 01 | 0010 | Alpha | Dec 1, 2021 | Dec 8, 2021 | Dec 22, 2021 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1992, January to 2021, December. Gray background - average solar cycle.
