Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 23, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9321 | S06 | E55 | 07 | 0100 | Beta | Jan 28, 2001 | Feb 4, 2001 | Feb 17, 2001 |
| № 9320 | S24 | W09 | 02 | 0020 | Beta | Jan 23, 2001 | Jan 30, 2001 | Feb 13, 2001 |
| № 9319 | S18 | W54 | 07 | 0030 | Beta | Jan 20, 2001 | Jan 27, 2001 | Feb 9, 2001 |
| № 9316 | S16 | E40 | 06 | 0130 | Beta | Jan 27, 2001 | Feb 3, 2001 | Feb 16, 2001 |
| № 9313 | S07 | E17 | 19 | 0190 | Beta | Jan 25, 2001 | Feb 1, 2001 | Feb 14, 2001 |
| № 9311 | N05 | W46 | 07 | 0100 | Beta | Jan 20, 2001 | Jan 27, 2001 | Feb 10, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to January 2001. The gray background is the average SSN index.
