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) | |
|---|---|---|---|---|---|---|---|---|
| № 9340 | S13 | E05 | 04 | 0010 | Beta | Feb 7, 2001 | Feb 14, 2001 | Feb 28, 2001 |
| № 9339 | S11 | E62 | 07 | 0220 | Beta | Feb 12, 2001 | Feb 18, 2001 | Mar 4, 2001 |
| № 9338 | S18 | E50 | 02 | 0020 | Beta | Feb 11, 2001 | Feb 18, 2001 | Mar 3, 2001 |
| № 9337 | S28 | E51 | 04 | 0020 | Beta | Feb 11, 2001 | Feb 18, 2001 | Mar 4, 2001 |
| № 9336 | S09 | W27 | 04 | 0010 | Beta | Feb 5, 2001 | Feb 12, 2001 | Feb 25, 2001 |
| № 9335 | N08 | E40 | 11 | 0080 | Beta | Feb 10, 2001 | Feb 17, 2001 | Mar 2, 2001 |
| № 9334 | N12 | E27 | 17 | 0180 | Beta | Feb 9, 2001 | Feb 16, 2001 | Mar 1, 2001 |
| № 9333 | N26 | W64 | 01 | 0010 | Alpha | Feb 2, 2001 | Feb 9, 2001 | Feb 23, 2001 |
| № 9330 | N26 | W09 | 06 | 0090 | Beta | Feb 6, 2001 | Feb 13, 2001 | Feb 27, 2001 |
| № 9327 | N19 | W73 | 01 | 0010 | Alpha | Feb 1, 2001 | Feb 8, 2001 | Feb 22, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, February. Gray background - average solar cycle.
