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) | |
|---|---|---|---|---|---|---|---|---|
| № 9576 | N12 | W53 | 02 | 0020 | Beta | Aug 9, 2001 | Aug 16, 2001 | Aug 29, 2001 |
| № 9575 | N11 | E73 | 01 | 0080 | Alpha | Aug 19, 2001 | Aug 25, 2001 | Sep 8, 2001 |
| № 9574 | S04 | W10 | 17 | 0320 | Beta | Aug 12, 2001 | Aug 19, 2001 | Sep 2, 2001 |
| № 9573 | S09 | E33 | 16 | 0140 | Beta | Aug 15, 2001 | Aug 22, 2001 | Sep 5, 2001 |
| № 9571 | N04 | E11 | 01 | 0130 | Alpha | Aug 14, 2001 | Aug 21, 2001 | Sep 3, 2001 |
| № 9570 | S12 | W07 | 06 | 0170 | Beta | Aug 12, 2001 | Aug 19, 2001 | Sep 2, 2001 |
| № 9569 | S18 | W68 | 03 | 0130 | Beta | Aug 8, 2001 | Aug 15, 2001 | Aug 28, 2001 |
| № 9566 | N17 | W72 | 11 | 0220 | Beta-Gamma-Delta | Aug 8, 2001 | Aug 14, 2001 | Aug 28, 2001 |
| № 9563 | N26 | W83 | 04 | 0180 | Beta | Aug 7, 2001 | Aug 14, 2001 | Aug 28, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, August. Gray background - average solar cycle.
