Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 22, 2001. Coordinates are given as of the end of the day.
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 9591 | S18 | E73 | 01 | 0060 | Alpha | Aug 28, 2001 | Sep 4, 2001 | Sep 18, 2001 |
| № 9590 | S28 | E66 | 01 | 0210 | Alpha | Aug 28, 2001 | Sep 4, 2001 | Sep 18, 2001 |
| № 9589 | N14 | W33 | 07 | 0020 | Beta | Aug 20, 2001 | Aug 27, 2001 | Sep 10, 2001 |
| № 9588 | S32 | W78 | 02 | 0030 | Beta | Aug 17, 2001 | Aug 24, 2001 | Sep 7, 2001 |
| № 9587 | S10 | E04 | 02 | 0010 | Beta | Aug 23, 2001 | Aug 30, 2001 | Sep 13, 2001 |
| № 9585 | N15 | E13 | 27 | 0270 | Beta | Aug 24, 2001 | Aug 31, 2001 | Sep 13, 2001 |
| № 9584 | S12 | W06 | 02 | 0010 | Alpha | Aug 22, 2001 | Aug 29, 2001 | Sep 12, 2001 |
| № 9582 | N28 | W05 | 25 | 0130 | Beta | Aug 22, 2001 | Aug 29, 2001 | Sep 13, 2001 |
| № 9580 | N25 | W15 | 01 | 0090 | Alpha | Aug 22, 2001 | Aug 29, 2001 | Sep 12, 2001 |
| № 9575 | N09 | W57 | 01 | 0120 | Alpha | Aug 19, 2001 | Aug 25, 2001 | Sep 8, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to August 2001. The gray background is the average SSN index.
