Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 2, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9724 | N09 | E74 | 01 | 0070 | Alpha | Dec 9, 2001 | Dec 15, 2001 | Dec 29, 2001 |
| № 9723 | S09 | E45 | 01 | 0020 | Alpha | Dec 6, 2001 | Dec 13, 2001 | Dec 27, 2001 |
| № 9722 | S16 | W19 | 04 | 0030 | Beta | Dec 2, 2001 | Dec 8, 2001 | Dec 22, 2001 |
| № 9721 | N13 | E43 | 04 | 0160 | Beta | Dec 6, 2001 | Dec 13, 2001 | Dec 27, 2001 |
| № 9720 | S18 | E33 | 10 | 0070 | Beta | Dec 6, 2001 | Dec 12, 2001 | Dec 26, 2001 |
| № 9719 | N03 | W38 | 04 | 0040 | Beta | Nov 30, 2001 | Dec 7, 2001 | Dec 20, 2001 |
| № 9718 | S07 | E30 | 16 | 0540 | Beta-Gamma | Dec 5, 2001 | Dec 12, 2001 | Dec 26, 2001 |
| № 9717 | N04 | E27 | 03 | 0270 | Beta | Dec 5, 2001 | Dec 12, 2001 | Dec 25, 2001 |
| № 9716 | S04 | W10 | 04 | 0030 | Beta | Dec 2, 2001 | Dec 9, 2001 | Dec 23, 2001 |
| № 9715 | N05 | W23 | 31 | 0890 | Beta-Gamma-Delta | Dec 1, 2001 | Dec 8, 2001 | Dec 22, 2001 |
| № 9714 | S10 | W84 | 07 | 0240 | Beta | Nov 27, 2001 | Dec 3, 2001 | Dec 17, 2001 |
| № 9712 | N12 | W65 | 03 | 0020 | 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.
