Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9657 | N23 | E72 | 01 | 0040 | Alpha | Oct 15, 2001 | Oct 22, 2001 | Nov 5, 2001 |
| № 9656 | S21 | W26 | 02 | 0010 | Beta | Oct 8, 2001 | Oct 15, 2001 | Oct 29, 2001 |
| № 9655 | S21 | E40 | 06 | 0130 | Beta | Oct 13, 2001 | Oct 20, 2001 | Nov 3, 2001 |
| № 9653 | S22 | E26 | 06 | 0220 | Beta | Oct 12, 2001 | Oct 19, 2001 | Nov 2, 2001 |
| № 9650 | S14 | E06 | 17 | 0060 | Beta | Oct 10, 2001 | Oct 17, 2001 | Oct 31, 2001 |
| № 9648 | S07 | W04 | 04 | 0030 | Beta | Oct 10, 2001 | Oct 16, 2001 | Oct 30, 2001 |
| № 9645 | S19 | W88 | 02 | 0060 | Alpha | Oct 3, 2001 | Oct 10, 2001 | Oct 24, 2001 |
| № 9642 | N05 | W51 | 01 | 0010 | Alpha | Oct 6, 2001 | Oct 13, 2001 | Oct 26, 2001 |
| № 9641 | S13 | W74 | 01 | 0050 | Alpha | Oct 4, 2001 | Oct 11, 2001 | Oct 25, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to October 2001. The gray background is the average SSN index.
