Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 30, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9601 | N09 | E58 | 08 | 0390 | Beta-Gamma | Sep 4, 2001 | Sep 11, 2001 | Sep 25, 2001 |
| № 9600 | N14 | E56 | 09 | 0280 | Beta-Gamma | Sep 4, 2001 | Sep 11, 2001 | Sep 25, 2001 |
| № 9599 | S19 | E36 | 10 | 0110 | Beta | Sep 3, 2001 | Sep 10, 2001 | Sep 23, 2001 |
| № 9597 | N17 | E09 | 09 | 0020 | Beta | Sep 1, 2001 | Sep 8, 2001 | Sep 21, 2001 |
| № 9596 | N21 | E28 | 02 | 0190 | Beta | Sep 2, 2001 | Sep 9, 2001 | Sep 23, 2001 |
| № 9591 | S18 | W22 | 26 | 0570 | Beta-Gamma-Delta | Aug 29, 2001 | Sep 5, 2001 | Sep 19, 2001 |
| № 9590 | S27 | W42 | 02 | 0150 | Alpha | Aug 28, 2001 | Sep 4, 2001 | Sep 18, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to August 2001. The gray background is the average SSN index.
