Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 22, 2001. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9751 | N04 | E70 | 01 | 0220 | Alpha | Dec 28, 2001 | Jan 4, 2002 | Jan 17, 2002 |
| № 9750 | S16 | W62 | 03 | 0030 | Beta | Dec 18, 2001 | Dec 25, 2001 | Jan 8, 2002 |
| № 9749 | S08 | E58 | 05 | 0060 | Beta | Dec 27, 2001 | Jan 3, 2002 | Jan 17, 2002 |
| № 9748 | S12 | E23 | 08 | 0050 | Beta | Dec 25, 2001 | Dec 31, 2001 | Jan 14, 2002 |
| № 9747 | N12 | E46 | 11 | 0060 | Beta | Dec 26, 2001 | Jan 2, 2002 | Jan 16, 2002 |
| № 9746 | S17 | W18 | 03 | 0010 | Beta | Dec 21, 2001 | Dec 28, 2001 | Jan 11, 2002 |
| № 9745 | N17 | E21 | 06 | 0020 | Beta | Dec 24, 2001 | Dec 31, 2001 | Jan 14, 2002 |
| № 9743 | S10 | E06 | 05 | 0130 | Beta | Dec 23, 2001 | Dec 30, 2001 | Jan 13, 2002 |
| № 9742 | N10 | W01 | 60 | 0720 | Beta-Gamma | Dec 23, 2001 | Dec 30, 2001 | Jan 12, 2002 |
| № 9738 | S17 | W49 | 02 | 0010 | Beta | Dec 19, 2001 | Dec 26, 2001 | Jan 9, 2002 |
| № 9737 | S29 | W81 | 01 | 0010 | Alpha | Dec 16, 2001 | Dec 24, 2001 | Jan 7, 2002 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to December 2001. The gray background is the average SSN index.
