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) | |
|---|---|---|---|---|---|---|---|---|
| № 9656 | S21 | W13 | 04 | 0020 | Beta | Oct 8, 2001 | Oct 15, 2001 | Oct 29, 2001 |
| № 9655 | S21 | E52 | 06 | 0180 | Beta | Oct 13, 2001 | Oct 20, 2001 | Nov 3, 2001 |
| № 9653 | S22 | E37 | 08 | 0280 | Beta | Oct 12, 2001 | Oct 19, 2001 | Nov 2, 2001 |
| № 9652 | N21 | W26 | 03 | 0010 | Beta | Oct 7, 2001 | Oct 14, 2001 | Oct 28, 2001 |
| № 9651 | S25 | W55 | 01 | 0000 | Alpha | Oct 5, 2001 | Oct 12, 2001 | Oct 26, 2001 |
| № 9650 | S14 | E18 | 19 | 0100 | Beta | Oct 10, 2001 | Oct 17, 2001 | Oct 31, 2001 |
| № 9648 | S07 | E08 | 05 | 0070 | Beta | Oct 10, 2001 | Oct 16, 2001 | Oct 30, 2001 |
| № 9645 | S18 | W81 | 04 | 0150 | Beta | Oct 3, 2001 | Oct 10, 2001 | Oct 23, 2001 |
| № 9642 | N04 | W40 | 01 | 0010 | Alpha | Oct 6, 2001 | Oct 13, 2001 | Oct 26, 2001 |
| № 9641 | S13 | W61 | 03 | 0100 | Alpha | Oct 4, 2001 | Oct 11, 2001 | Oct 25, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, October. Gray background - average solar cycle.
