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) | |
|---|---|---|---|---|---|---|---|---|
| № 9559 | S24 | W00 | 08 | 0030 | Beta | Jul 30, 2001 | Aug 6, 2001 | Aug 20, 2001 |
| № 9557 | S20 | E48 | 04 | 0090 | Beta | Aug 3, 2001 | Aug 10, 2001 | Aug 23, 2001 |
| № 9555 | S09 | E01 | 01 | 0000 | Alpha | Jul 30, 2001 | Aug 6, 2001 | Aug 19, 2001 |
| № 9553 | N13 | W33 | 13 | 0030 | Beta | Jul 28, 2001 | Aug 3, 2001 | Aug 17, 2001 |
| № 9548 | N17 | W84 | 01 | 0060 | Alpha | Jul 24, 2001 | Jul 30, 2001 | Aug 13, 2001 |
| № 9543 | S23 | W89 | 01 | 0060 | Alpha | Jul 23, 2001 | Jul 30, 2001 | Aug 13, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, July. Gray background - average solar cycle.
