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) | |
|---|---|---|---|---|---|---|---|---|
| № 2903 | S17 | E41 | 01 | 0010 | alpha | Dec 4, 2021 | Dec 11, 2021 | Dec 25, 2021 |
| № 2902 | N18 | W06 | 05 | 0030 | beta | Dec 1, 2021 | Dec 7, 2021 | Dec 21, 2021 |
| № 2901 | N15 | E37 | 01 | 0010 | alpha | Dec 4, 2021 | Dec 11, 2021 | Dec 24, 2021 |
| № 2900 | S27 | W64 | 03 | 0240 | beta | Nov 26, 2021 | Dec 3, 2021 | Dec 17, 2021 |
| № 2898 | S25 | W52 | 01 | 0100 | alpha | Nov 27, 2021 | Dec 4, 2021 | Dec 18, 2021 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1992, January to 2021, December. Gray background - average solar cycle.
