Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 1, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9721 | N13 | E57 | 03 | 0140 | Beta | Dec 6, 2001 | Dec 13, 2001 | Dec 27, 2001 |
| № 9720 | S18 | E46 | 09 | 0150 | Beta | Dec 6, 2001 | Dec 12, 2001 | Dec 26, 2001 |
| № 9719 | N04 | W24 | 06 | 0060 | Beta | Nov 30, 2001 | Dec 7, 2001 | Dec 20, 2001 |
| № 9718 | S07 | E42 | 12 | 0500 | Beta | Dec 5, 2001 | Dec 12, 2001 | Dec 25, 2001 |
| № 9717 | N05 | E40 | 03 | 0320 | Beta | Dec 5, 2001 | Dec 12, 2001 | Dec 25, 2001 |
| № 9716 | S05 | E01 | 03 | 0050 | Beta | Dec 2, 2001 | Dec 9, 2001 | Dec 22, 2001 |
| № 9715 | N05 | W11 | 25 | 0990 | Beta-Gamma-Delta | Dec 1, 2001 | Dec 8, 2001 | Dec 21, 2001 |
| № 9714 | S09 | W69 | 04 | 0100 | Beta | Nov 27, 2001 | Dec 4, 2001 | Dec 17, 2001 |
| № 9712 | N12 | W53 | 03 | 0030 | Beta | Nov 28, 2001 | Dec 5, 2001 | Dec 18, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to December 2001. The gray background is the average SSN index.
