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) | |
|---|---|---|---|---|---|---|---|---|
| № 9361 | S12 | W06 | 03 | 0010 | Beta | Feb 25, 2001 | Mar 3, 2001 | Mar 17, 2001 |
| № 9360 | S10 | E31 | 01 | 0030 | Alpha | Feb 27, 2001 | Mar 6, 2001 | Mar 20, 2001 |
| № 9359 | N12 | E34 | 15 | 0200 | Beta | Feb 28, 2001 | Mar 6, 2001 | Mar 20, 2001 |
| № 9358 | S04 | W22 | 06 | 0010 | Beta | Feb 23, 2001 | Mar 2, 2001 | Mar 16, 2001 |
| № 9357 | S25 | W33 | 08 | 0020 | Beta | Feb 22, 2001 | Mar 1, 2001 | Mar 15, 2001 |
| № 9356 | S13 | W80 | 02 | 0010 | Beta | Feb 19, 2001 | Feb 26, 2001 | Mar 11, 2001 |
| № 9354 | S09 | W59 | 18 | 0250 | Beta | Feb 21, 2001 | Feb 27, 2001 | Mar 13, 2001 |
| № 9352 | S21 | W35 | 02 | 0000 | Alpha | Feb 22, 2001 | Mar 1, 2001 | Mar 15, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, February. Gray background - average solar cycle.
