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) | |
|---|---|---|---|---|---|---|---|---|
| № 9582 | N32 | E73 | 03 | 0040 | Beta | Aug 23, 2001 | Aug 30, 2001 | Sep 13, 2001 |
| № 9581 | S28 | W09 | 01 | 0020 | Alpha | Aug 16, 2001 | Aug 23, 2001 | Sep 6, 2001 |
| № 9580 | N25 | E61 | 01 | 0140 | Alpha | Aug 22, 2001 | Aug 29, 2001 | Sep 12, 2001 |
| № 9579 | S19 | W22 | 08 | 0050 | Beta | Aug 15, 2001 | Aug 22, 2001 | Sep 5, 2001 |
| № 9578 | S08 | W53 | 04 | 0020 | Beta | Aug 13, 2001 | Aug 20, 2001 | Sep 2, 2001 |
| № 9577 | N13 | W61 | 07 | 0050 | Beta | Aug 12, 2001 | Aug 19, 2001 | Sep 2, 2001 |
| № 9575 | N12 | E20 | 01 | 0130 | Alpha | Aug 19, 2001 | Aug 25, 2001 | Sep 8, 2001 |
| № 9574 | S04 | W66 | 13 | 0190 | Beta | Aug 12, 2001 | Aug 19, 2001 | Sep 1, 2001 |
| № 9573 | S08 | W23 | 05 | 0040 | Beta | Aug 15, 2001 | Aug 22, 2001 | Sep 5, 2001 |
| № 9571 | N06 | W43 | 01 | 0020 | Alpha | Aug 14, 2001 | Aug 21, 2001 | Sep 3, 2001 |
| № 9570 | S12 | W60 | 01 | 0140 | Alpha | Aug 12, 2001 | Aug 19, 2001 | Sep 2, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, August. Gray background - average solar cycle.
