Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 25, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9595 | N16 | E25 | 01 | 0010 | Alpha | Aug 28, 2001 | Sep 4, 2001 | Sep 18, 2001 |
| № 9594 | N37 | E03 | 03 | 0010 | Beta | Aug 26, 2001 | Sep 3, 2001 | Sep 17, 2001 |
| № 9593 | N00 | W14 | 01 | 0000 | Alpha | Aug 25, 2001 | Sep 1, 2001 | Sep 14, 2001 |
| № 9592 | S09 | W89 | 02 | 0040 | Beta | Aug 19, 2001 | Aug 26, 2001 | Sep 9, 2001 |
| № 9591 | S18 | E40 | 32 | 0650 | Beta-Gamma-Delta | Aug 29, 2001 | Sep 5, 2001 | Sep 19, 2001 |
| № 9590 | S28 | E23 | 02 | 0210 | Alpha | Aug 28, 2001 | Sep 4, 2001 | Sep 18, 2001 |
| № 9589 | N15 | W75 | 03 | 0020 | Beta | Aug 20, 2001 | Aug 27, 2001 | Sep 10, 2001 |
| № 9587 | S11 | W37 | 02 | 0010 | Alpha | Aug 23, 2001 | Aug 30, 2001 | Sep 13, 2001 |
| № 9585 | N13 | W31 | 25 | 0180 | Beta | Aug 24, 2001 | Aug 31, 2001 | Sep 13, 2001 |
| № 9582 | N27 | W50 | 04 | 0040 | Beta | Aug 22, 2001 | Aug 29, 2001 | Sep 12, 2001 |
| № 9580 | N25 | W56 | 02 | 0090 | Beta | Aug 22, 2001 | Aug 29, 2001 | Sep 12, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to August 2001. The gray background is the average SSN index.
