Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 13, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9309 | N10 | W24 | 07 | 0060 | Beta | Jan 12, 2001 | Jan 19, 2001 | Feb 1, 2001 |
| № 9308 | N14 | E27 | 15 | 0100 | Beta | Jan 16, 2001 | Jan 23, 2001 | Feb 5, 2001 |
| № 9306 | N12 | E06 | 44 | 0330 | Beta-Gamma | Jan 14, 2001 | Jan 21, 2001 | Feb 4, 2001 |
| № 9305 | S06 | W02 | 02 | 0010 | Alpha | Jan 14, 2001 | Jan 20, 2001 | Feb 3, 2001 |
| № 9304 | N11 | W14 | 02 | 0030 | Beta | Jan 13, 2001 | Jan 20, 2001 | Feb 2, 2001 |
| № 9302 | N19 | W26 | 06 | 0050 | Beta | Jan 12, 2001 | Jan 19, 2001 | Feb 1, 2001 |
| № 9301 | N09 | W30 | 04 | 0030 | Beta | Jan 12, 2001 | Jan 18, 2001 | Feb 1, 2001 |
| № 9296 | N09 | W57 | 02 | 0070 | Alpha | Jan 10, 2001 | Jan 16, 2001 | Jan 30, 2001 |
| № 9295 | S12 | W58 | 01 | 0030 | Alpha | Jan 9, 2001 | Jan 16, 2001 | Jan 30, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to January 2001. The gray background is the average SSN index.
