Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 16, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9742 | N09 | E73 | 05 | 0150 | Beta | Dec 23, 2001 | Dec 29, 2001 | Jan 12, 2002 |
| № 9741 | N05 | E43 | 01 | 0030 | Alpha | Dec 20, 2001 | Dec 27, 2001 | Jan 10, 2002 |
| № 9739 | S13 | W30 | 16 | 0120 | Beta | Dec 15, 2001 | Dec 22, 2001 | Jan 4, 2002 |
| № 9738 | S18 | E27 | 13 | 0060 | Beta | Dec 19, 2001 | Dec 26, 2001 | Jan 9, 2002 |
| № 9737 | S27 | W12 | 06 | 0070 | Beta | Dec 16, 2001 | Dec 23, 2001 | Jan 6, 2002 |
| № 9734 | S14 | E01 | 05 | 0020 | Beta | Dec 17, 2001 | Dec 24, 2001 | Jan 7, 2002 |
| № 9733 | N14 | W23 | 57 | 0430 | Beta-Gamma-Delta | Dec 15, 2001 | Dec 22, 2001 | Jan 5, 2002 |
| № 9732 | N03 | W49 | 01 | 0050 | Alpha | Dec 13, 2001 | Dec 20, 2001 | Jan 3, 2002 |
| № 9727 | S22 | W88 | 04 | 0320 | Beta-Gamma-Delta | Dec 10, 2001 | Dec 17, 2001 | Dec 31, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to December 2001. The gray background is the average SSN index.
