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) | |
|---|---|---|---|---|---|---|---|---|
| № 9553 | N13 | E34 | 03 | 0030 | Beta | Jul 28, 2001 | Aug 3, 2001 | Aug 17, 2001 |
| № 9552 | N13 | E15 | 02 | 0010 | Beta | Jul 26, 2001 | Aug 2, 2001 | Aug 16, 2001 |
| № 9548 | N18 | W16 | 06 | 0090 | Beta | Jul 24, 2001 | Jul 31, 2001 | Aug 13, 2001 |
| № 9546 | S15 | W44 | 03 | 0020 | Alpha | Jul 22, 2001 | Jul 28, 2001 | Aug 11, 2001 |
| № 9545 | N08 | W72 | 07 | 0120 | Beta | Jul 20, 2001 | Jul 26, 2001 | Aug 9, 2001 |
| № 9543 | S25 | W31 | 40 | 0250 | Beta-Gamma | Jul 23, 2001 | Jul 30, 2001 | Aug 13, 2001 |
| № 9541 | N19 | W65 | 01 | 0020 | Alpha | Jul 20, 2001 | Jul 27, 2001 | Aug 10, 2001 |
| № 9538 | N15 | W78 | 01 | 0120 | Alpha | Jul 19, 2001 | Jul 26, 2001 | Aug 9, 2001 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1972, January to 2001, July. Gray background - average solar cycle.
