Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 9332 | N08 | E24 | 03 | 0020 | Beta | Feb 3, 2001 | Feb 10, 2001 | Feb 23, 2001 |
| № 9331 | N13 | E27 | 03 | 0050 | Beta | Feb 3, 2001 | Feb 10, 2001 | Feb 23, 2001 |
| № 9330 | N24 | E67 | 01 | 0100 | Alpha | Feb 6, 2001 | Feb 13, 2001 | Feb 27, 2001 |
| № 9329 | S10 | E36 | 05 | 0020 | Beta | Feb 4, 2001 | Feb 11, 2001 | Feb 24, 2001 |
| № 9328 | N06 | W87 | 03 | 0050 | Alpha | Jan 25, 2001 | Feb 1, 2001 | Feb 15, 2001 |
| № 9327 | N18 | E06 | 09 | 0050 | Beta | Feb 1, 2001 | Feb 8, 2001 | Feb 22, 2001 |
| № 9325 | N10 | W04 | 04 | 0030 | Beta | Feb 1, 2001 | Feb 7, 2001 | Feb 21, 2001 |
| № 9321 | S06 | W51 | 20 | 0150 | Beta | Jan 28, 2001 | Feb 4, 2001 | Feb 17, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, January. Gray background - average solar cycle.
