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) | |
|---|---|---|---|---|---|---|---|---|
| № 9572 | N16 | E25 | 01 | 0020 | Alpha | Aug 11, 2001 | Aug 18, 2001 | Aug 31, 2001 |
| № 9571 | N06 | E68 | 01 | 0060 | Alpha | Aug 14, 2001 | Aug 21, 2001 | Sep 3, 2001 |
| № 9570 | S11 | E47 | 03 | 0190 | Beta | Aug 12, 2001 | Aug 19, 2001 | Sep 2, 2001 |
| № 9569 | S18 | W13 | 12 | 0170 | Beta | Aug 8, 2001 | Aug 15, 2001 | Aug 28, 2001 |
| № 9567 | S14 | W59 | 06 | 0040 | Beta | Aug 4, 2001 | Aug 11, 2001 | Aug 25, 2001 |
| № 9566 | N17 | W16 | 12 | 0150 | Beta | Aug 8, 2001 | Aug 14, 2001 | Aug 28, 2001 |
| № 9563 | N24 | W32 | 24 | 0470 | Beta-Gamma | Aug 6, 2001 | Aug 13, 2001 | Aug 27, 2001 |
| № 9562 | N05 | W37 | 05 | 0020 | Beta | Aug 6, 2001 | Aug 13, 2001 | Aug 26, 2001 |
| № 9561 | S11 | W46 | 01 | 0030 | Alpha | Aug 5, 2001 | Aug 12, 2001 | Aug 26, 2001 |
| № 9557 | S20 | W76 | 12 | 0600 | Beta-Delta | Aug 3, 2001 | Aug 10, 2001 | Aug 24, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, August. Gray background - average solar cycle.
