Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 9, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9615 | N12 | E66 | 01 | 0000 | Alpha | Sep 15, 2001 | Sep 22, 2001 | Oct 5, 2001 |
| № 9614 | N13 | W17 | 01 | 0000 | Alpha | Sep 9, 2001 | Sep 15, 2001 | Sep 29, 2001 |
| № 9613 | S17 | W66 | 07 | 0030 | Beta | Sep 5, 2001 | Sep 12, 2001 | Sep 25, 2001 |
| № 9612 | N22 | E29 | 05 | 0030 | Beta | Sep 12, 2001 | Sep 19, 2001 | Oct 3, 2001 |
| № 9611 | N10 | W35 | 11 | 0130 | Beta | Sep 7, 2001 | Sep 14, 2001 | Sep 28, 2001 |
| № 9610 | S14 | E50 | 14 | 0330 | Beta | Sep 14, 2001 | Sep 20, 2001 | Oct 4, 2001 |
| № 9609 | S06 | W83 | 02 | 0020 | Alpha | Sep 4, 2001 | Sep 10, 2001 | Sep 24, 2001 |
| № 9608 | S26 | E35 | 47 | 0940 | Beta-Gamma | Sep 13, 2001 | Sep 20, 2001 | Oct 4, 2001 |
| № 9607 | S17 | E19 | 27 | 0300 | Beta-Gamma | Sep 11, 2001 | Sep 18, 2001 | Oct 2, 2001 |
| № 9606 | S18 | W05 | 30 | 0220 | Beta | Sep 9, 2001 | Sep 16, 2001 | Sep 30, 2001 |
| № 9605 | S18 | W13 | 02 | 0070 | Alpha | Sep 9, 2001 | Sep 16, 2001 | Sep 29, 2001 |
| № 9601 | N13 | W77 | 14 | 0500 | Beta-Gamma | Sep 4, 2001 | Sep 11, 2001 | Sep 24, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to September 2001. The gray background is the average SSN index.
