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 | N12 | E78 | 01 | 0060 | Alpha | Feb 9, 2001 | Feb 16, 2001 | Mar 1, 2001 |
| № 9333 | N24 | W10 | 05 | 0020 | Beta | Feb 2, 2001 | Feb 9, 2001 | Feb 23, 2001 |
| № 9332 | N08 | W03 | 08 | 0040 | Beta | Feb 3, 2001 | Feb 10, 2001 | Feb 23, 2001 |
| № 9331 | N13 | W00 | 03 | 0010 | Beta | Feb 3, 2001 | Feb 10, 2001 | Feb 23, 2001 |
| № 9330 | N25 | E44 | 12 | 0220 | Beta | Feb 6, 2001 | Feb 13, 2001 | Feb 27, 2001 |
| № 9329 | S11 | E06 | 02 | 0010 | Beta | Feb 3, 2001 | Feb 10, 2001 | Feb 24, 2001 |
| № 9327 | N18 | W21 | 11 | 0050 | Beta | Feb 1, 2001 | Feb 8, 2001 | Feb 22, 2001 |
| № 9325 | N10 | W32 | 03 | 0030 | Beta | Feb 1, 2001 | Feb 7, 2001 | Feb 21, 2001 |
| № 9321 | S04 | W81 | 06 | 0110 | Beta | Jan 28, 2001 | Feb 4, 2001 | Feb 17, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, February. Gray background - average solar cycle.
