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) | |
|---|---|---|---|---|---|---|---|---|
| № 9601 | N12 | E86 | 07 | 0150 | Beta | Sep 5, 2001 | Sep 11, 2001 | Sep 25, 2001 |
| № 9600 | N16 | E81 | 04 | 0170 | Beta | Sep 4, 2001 | Sep 11, 2001 | Sep 25, 2001 |
| № 9599 | S17 | E64 | 03 | 0080 | Beta | Sep 3, 2001 | Sep 10, 2001 | Sep 23, 2001 |
| № 9598 | S17 | W75 | 01 | 0030 | Alpha | Aug 23, 2001 | Aug 30, 2001 | Sep 13, 2001 |
| № 9597 | N17 | E35 | 09 | 0040 | Beta | Sep 1, 2001 | Sep 8, 2001 | Sep 21, 2001 |
| № 9596 | N22 | E53 | 01 | 0160 | Alpha | Sep 2, 2001 | Sep 9, 2001 | Sep 23, 2001 |
| № 9595 | N15 | W18 | 02 | 0010 | Beta | Aug 28, 2001 | Sep 3, 2001 | Sep 17, 2001 |
| № 9591 | S19 | E07 | 41 | 0620 | Beta-Gamma-Delta | Aug 30, 2001 | Sep 5, 2001 | Sep 19, 2001 |
| № 9590 | S26 | W18 | 03 | 0150 | Alpha | Aug 28, 2001 | Sep 4, 2001 | Sep 18, 2001 |
| № 9587 | S10 | W77 | 06 | 0100 | Beta | Aug 23, 2001 | Aug 30, 2001 | Sep 13, 2001 |
| № 9585 | N12 | W72 | 02 | 0030 | Beta | Aug 24, 2001 | Aug 30, 2001 | Sep 13, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, August. Gray background - average solar cycle.
