Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 9670 | S16 | E68 | 02 | 0130 | Alpha | Oct 23, 2001 | Oct 30, 2001 | Nov 13, 2001 |
| № 9669 | N13 | E58 | 11 | 0150 | Beta | Oct 22, 2001 | Oct 29, 2001 | Nov 12, 2001 |
| № 9667 | N24 | E48 | 08 | 0070 | Beta | Oct 22, 2001 | Oct 29, 2001 | Nov 11, 2001 |
| № 9663 | S16 | W04 | 01 | 0010 | Alpha | Oct 18, 2001 | Oct 24, 2001 | Nov 7, 2001 |
| № 9662 | N10 | W23 | 13 | 0050 | Beta | Oct 16, 2001 | Oct 23, 2001 | Nov 6, 2001 |
| № 9661 | N16 | E05 | 34 | 0800 | Beta-Gamma-Delta | Oct 18, 2001 | Oct 25, 2001 | Nov 8, 2001 |
| № 9659 | N07 | W63 | 04 | 0030 | Beta | Oct 13, 2001 | Oct 20, 2001 | Nov 3, 2001 |
| № 9658 | S14 | W23 | 15 | 0120 | Beta | Oct 16, 2001 | Oct 23, 2001 | Nov 6, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, October. Gray background - average solar cycle.
