Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 24, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9553 | N13 | E36 | 03 | 0030 | Beta | Jul 28, 2001 | Aug 3, 2001 | Aug 17, 2001 |
| № 9552 | N13 | E17 | 02 | 0010 | Beta | Jul 26, 2001 | Aug 2, 2001 | Aug 16, 2001 |
| № 9548 | N18 | W14 | 06 | 0090 | Beta | Jul 24, 2001 | Jul 31, 2001 | Aug 13, 2001 |
| № 9546 | S15 | W42 | 03 | 0020 | Alpha | Jul 22, 2001 | Jul 28, 2001 | Aug 11, 2001 |
| № 9545 | N08 | W70 | 07 | 0120 | Beta | Jul 20, 2001 | Jul 26, 2001 | Aug 9, 2001 |
| № 9543 | S25 | W29 | 40 | 0250 | Beta-Gamma | Jul 23, 2001 | Jul 30, 2001 | Aug 13, 2001 |
| № 9541 | N19 | W63 | 01 | 0020 | Alpha | Jul 20, 2001 | Jul 27, 2001 | Aug 10, 2001 |
| № 9538 | N15 | W76 | 01 | 0120 | Alpha | Jul 19, 2001 | Jul 26, 2001 | Aug 9, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to July 2001. The gray background is the average SSN index.
