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) | |
|---|---|---|---|---|---|---|---|---|
| № 9574 | S03 | E04 | 09 | 0030 | Beta | Aug 12, 2001 | Aug 19, 2001 | Sep 2, 2001 |
| № 9573 | S09 | E46 | 08 | 0180 | Beta | Aug 15, 2001 | Aug 22, 2001 | Sep 5, 2001 |
| № 9571 | N07 | E25 | 01 | 0040 | Alpha | Aug 14, 2001 | Aug 21, 2001 | Sep 3, 2001 |
| № 9570 | S11 | E06 | 02 | 0170 | Beta | Aug 12, 2001 | Aug 19, 2001 | Sep 2, 2001 |
| № 9569 | S18 | W54 | 08 | 0190 | Beta | Aug 8, 2001 | Aug 15, 2001 | Aug 28, 2001 |
| № 9566 | N17 | W58 | 09 | 0190 | Beta-Gamma | Aug 8, 2001 | Aug 14, 2001 | Aug 28, 2001 |
| № 9563 | N25 | W74 | 12 | 0290 | Beta-Gamma | Aug 6, 2001 | Aug 13, 2001 | Aug 27, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, August. Gray background - average solar cycle.
