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) | |
|---|---|---|---|---|---|---|---|---|
| № 9334 | N11 | E67 | 06 | 0200 | Beta | Feb 9, 2001 | Feb 16, 2001 | Mar 1, 2001 |
| № 9333 | N25 | W24 | 05 | 0030 | Beta | Feb 2, 2001 | Feb 9, 2001 | Feb 23, 2001 |
| № 9332 | N08 | W19 | 05 | 0030 | Beta | Feb 3, 2001 | Feb 9, 2001 | Feb 23, 2001 |
| № 9330 | N26 | E31 | 16 | 0140 | Beta | Feb 6, 2001 | Feb 13, 2001 | Feb 27, 2001 |
| № 9329 | S10 | W06 | 02 | 0010 | Alpha | Feb 4, 2001 | Feb 10, 2001 | Feb 24, 2001 |
| № 9327 | N17 | W36 | 04 | 0030 | Beta | Feb 1, 2001 | Feb 8, 2001 | Feb 22, 2001 |
| № 9325 | N10 | W48 | 01 | 0010 | Alpha | Jan 31, 2001 | Feb 7, 2001 | Feb 21, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, February. Gray background - average solar cycle.
