Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 31, 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 | E43 | 20 | 0470 | Beta | Nov 4, 2001 | Nov 11, 2001 | Nov 24, 2001 |
| № 9683 | N28 | W26 | 04 | 0020 | Beta | Oct 30, 2001 | Nov 6, 2001 | Nov 20, 2001 |
| № 9682 | N12 | E06 | 59 | 1130 | Beta-Gamma-Delta | Nov 1, 2001 | Nov 8, 2001 | Nov 22, 2001 |
| № 9681 | S23 | W63 | 01 | 0010 | Alpha | Oct 27, 2001 | Nov 3, 2001 | Nov 17, 2001 |
| № 9679 | S10 | W32 | 07 | 0020 | Beta | Oct 29, 2001 | Nov 5, 2001 | Nov 19, 2001 |
| № 9678 | N07 | W45 | 21 | 0490 | Beta-Gamma | Oct 28, 2001 | Nov 4, 2001 | Nov 18, 2001 |
| № 9676 | N15 | W60 | 01 | 0020 | Alpha | Oct 27, 2001 | Nov 3, 2001 | Nov 17, 2001 |
| № 9673 | N05 | W87 | 01 | 0030 | Alpha | Oct 25, 2001 | Nov 1, 2001 | Nov 15, 2001 |
| № 9672 | S16 | W90 | 01 | 0110 | Alpha | Oct 25, 2001 | Nov 1, 2001 | Nov 15, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to October 2001. The gray background is the average SSN index.
