Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 28, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9684 | N05 | E80 | 01 | 0140 | Alpha | Nov 4, 2001 | Nov 11, 2001 | Nov 24, 2001 |
| № 9683 | N28 | E16 | 05 | 0010 | Beta | Oct 30, 2001 | Nov 6, 2001 | Nov 20, 2001 |
| № 9682 | N12 | E47 | 28 | 0990 | Beta-Gamma-Delta | Nov 1, 2001 | Nov 8, 2001 | Nov 22, 2001 |
| № 9681 | S23 | W20 | 05 | 0040 | Beta | Oct 27, 2001 | Nov 3, 2001 | Nov 17, 2001 |
| № 9679 | S10 | E09 | 10 | 0030 | Beta | Oct 30, 2001 | Nov 5, 2001 | Nov 19, 2001 |
| № 9678 | N07 | W05 | 43 | 0630 | Beta-Gamma | Oct 28, 2001 | Nov 4, 2001 | Nov 18, 2001 |
| № 9677 | N23 | W17 | 04 | 0010 | Beta | Oct 28, 2001 | Nov 3, 2001 | Nov 17, 2001 |
| № 9676 | N16 | W19 | 01 | 0030 | Alpha | Oct 27, 2001 | Nov 3, 2001 | Nov 17, 2001 |
| № 9673 | N04 | W47 | 01 | 0090 | Alpha | Oct 25, 2001 | Nov 1, 2001 | Nov 15, 2001 |
| № 9672 | S18 | W51 | 11 | 0450 | Beta-Gamma-Delta | Oct 25, 2001 | Nov 1, 2001 | Nov 15, 2001 |
| № 9670 | S17 | W72 | 06 | 0190 | Beta | Oct 23, 2001 | Oct 30, 2001 | Nov 13, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to October 2001. The gray background is the average SSN index.
