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) | |
|---|---|---|---|---|---|---|---|---|
| № 9342 | S26 | E56 | 01 | 0010 | Alpha | Feb 12, 2001 | Feb 19, 2001 | Mar 5, 2001 |
| № 9341 | S10 | E23 | 02 | 0010 | Beta | Feb 10, 2001 | Feb 17, 2001 | Mar 2, 2001 |
| № 9339 | S11 | E48 | 11 | 0250 | Beta | Feb 12, 2001 | Feb 18, 2001 | Mar 4, 2001 |
| № 9338 | S20 | E38 | 04 | 0030 | Beta | Feb 11, 2001 | Feb 18, 2001 | Mar 4, 2001 |
| № 9337 | S29 | E38 | 07 | 0040 | Beta | Feb 11, 2001 | Feb 18, 2001 | Mar 4, 2001 |
| № 9336 | S09 | W41 | 04 | 0020 | Beta | Feb 5, 2001 | Feb 12, 2001 | Feb 25, 2001 |
| № 9335 | N09 | E28 | 13 | 0100 | Beta | Feb 10, 2001 | Feb 17, 2001 | Mar 2, 2001 |
| № 9334 | N11 | E13 | 19 | 0130 | Beta | Feb 9, 2001 | Feb 16, 2001 | Mar 1, 2001 |
| № 9330 | N26 | W21 | 10 | 0080 | Beta | Feb 6, 2001 | Feb 13, 2001 | Feb 27, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, February. Gray background - average solar cycle.
