Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9311 | N04 | E53 | 04 | 0050 | Beta | Jan 21, 2001 | Jan 28, 2001 | Feb 10, 2001 |
| № 9310 | N26 | E37 | 01 | 0020 | Alpha | Jan 20, 2001 | Jan 27, 2001 | Feb 10, 2001 |
| № 9309 | N10 | W64 | 02 | 0000 | Alpha | Jan 12, 2001 | Jan 19, 2001 | Feb 2, 2001 |
| № 9308 | N15 | W17 | 19 | 0190 | Beta | Jan 16, 2001 | Jan 23, 2001 | Feb 5, 2001 |
| № 9306 | N12 | W38 | 43 | 0460 | Beta-Gamma | Jan 14, 2001 | Jan 21, 2001 | Feb 4, 2001 |
| № 9304 | N12 | W56 | 01 | 0000 | Alpha | Jan 13, 2001 | Jan 20, 2001 | Feb 2, 2001 |
| № 9302 | N19 | W69 | 02 | 0000 | Beta | Jan 12, 2001 | Jan 19, 2001 | Feb 1, 2001 |
| № 9301 | N08 | W73 | 02 | 0000 | Alpha | Jan 12, 2001 | Jan 18, 2001 | Feb 1, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to January 2001. The gray background is the average SSN index.
