Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 20, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9317 | N08 | W70 | 02 | 0030 | Beta | Jan 16, 2001 | Jan 22, 2001 | Feb 5, 2001 |
| № 9316 | S17 | E77 | 03 | 0100 | Alpha | Jan 27, 2001 | Feb 3, 2001 | Feb 16, 2001 |
| № 9315 | S28 | E46 | 02 | 0030 | Beta | Jan 24, 2001 | Jan 31, 2001 | Feb 15, 2001 |
| № 9314 | N17 | W56 | 03 | 0010 | Beta | Jan 17, 2001 | Jan 23, 2001 | Feb 6, 2001 |
| № 9313 | S07 | E59 | 16 | 0190 | Beta | Jan 25, 2001 | Feb 1, 2001 | Feb 15, 2001 |
| № 9312 | N08 | E24 | 02 | 0020 | Beta | Jan 23, 2001 | Jan 29, 2001 | Feb 12, 2001 |
| № 9311 | N04 | W02 | 11 | 0080 | Beta | Jan 21, 2001 | Jan 27, 2001 | Feb 10, 2001 |
| № 9310 | N27 | W13 | 02 | 0010 | Alpha | Jan 20, 2001 | Jan 27, 2001 | Feb 10, 2001 |
| № 9308 | N17 | W68 | 03 | 0050 | Beta | Jan 16, 2001 | Jan 23, 2001 | Feb 5, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to January 2001. The gray background is the average SSN index.
