Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 27, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9558 | N18 | W30 | 02 | 0010 | Beta | Jul 26, 2001 | Aug 2, 2001 | Aug 15, 2001 |
| № 9557 | S18 | E72 | 01 | 0080 | Alpha | Aug 2, 2001 | Aug 9, 2001 | Aug 23, 2001 |
| № 9556 | S07 | W56 | 02 | 0020 | Beta | Jul 24, 2001 | Jul 31, 2001 | Aug 13, 2001 |
| № 9555 | S09 | E28 | 02 | 0010 | Beta | Jul 30, 2001 | Aug 6, 2001 | Aug 19, 2001 |
| № 9554 | N16 | W86 | 01 | 0010 | Alpha | Jul 21, 2001 | Jul 28, 2001 | Aug 11, 2001 |
| № 9553 | N13 | W05 | 15 | 0190 | Beta | Jul 28, 2001 | Aug 3, 2001 | Aug 17, 2001 |
| № 9548 | N16 | W59 | 01 | 0060 | Alpha | Jul 24, 2001 | Jul 30, 2001 | Aug 13, 2001 |
| № 9543 | S24 | W70 | 11 | 0310 | Beta-Gamma | Jul 23, 2001 | Jul 30, 2001 | Aug 12, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to July 2001. The gray background is the average SSN index.
