Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 30, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9560 | N18 | E48 | 01 | 0010 | Alpha | Aug 4, 2001 | Aug 10, 2001 | Aug 24, 2001 |
| № 9559 | S24 | W12 | 06 | 0040 | Beta | Jul 30, 2001 | Aug 6, 2001 | Aug 20, 2001 |
| № 9557 | S20 | E38 | 09 | 0130 | Beta | Aug 3, 2001 | Aug 10, 2001 | Aug 23, 2001 |
| № 9553 | N14 | W44 | 03 | 0010 | Beta | Jul 28, 2001 | Aug 3, 2001 | Aug 17, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to July 2001. The gray background is the average SSN index.
