Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 23, 2021. Coordinates are given as of the end of the day.
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 2918 | N20 | E52 | 04 | 0020 | Beta | Dec 28, 2021 | Jan 4, 2022 | Jan 18, 2022 |
| № 2917 | S27 | E30 | 02 | 0010 | Beta | Dec 26, 2021 | Jan 2, 2022 | Jan 16, 2022 |
| № 2916 | S17 | E69 | 03 | 0240 | Beta | Dec 29, 2021 | Jan 5, 2022 | Jan 19, 2022 |
| № 2915 | N16 | E22 | 03 | 0030 | Beta | Dec 26, 2021 | Jan 2, 2022 | Jan 15, 2022 |
| № 2912 | S12 | E27 | 01 | 0020 | Alpha | Dec 26, 2021 | Jan 2, 2022 | Jan 15, 2022 |
| № 2911 | N20 | W12 | 01 | 0010 | Alpha | Dec 23, 2021 | Dec 30, 2021 | Jan 13, 2022 |
| № 2909 | S21 | W26 | 03 | 0070 | Alpha | Dec 22, 2021 | Dec 29, 2021 | Jan 12, 2022 |
| № 2908 | S20 | W39 | 16 | 0100 | Beta-Gamma | Dec 21, 2021 | Dec 28, 2021 | Jan 11, 2022 |
| № 2907 | S21 | W50 | 14 | 0230 | Beta-Gamma | Dec 20, 2021 | Dec 27, 2021 | Jan 10, 2022 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1992 to December 2021. The gray background is the average SSN index.
