Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 2, 2010. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1104 | N24 | W25 | 02 | 0010 | Beta | Sep 1, 2010 | Sep 8, 2010 | Sep 22, 2010 |
| № 1103 | N25 | W30 | 02 | 0010 | Beta | Sep 1, 2010 | Sep 7, 2010 | Sep 21, 2010 |
| № 1102 | N26 | W50 | 05 | 0100 | Beta | Aug 30, 2010 | Sep 6, 2010 | Sep 20, 2010 |
| № 1101 | N12 | W30 | 02 | 0150 | Beta | Sep 1, 2010 | Sep 7, 2010 | Sep 21, 2010 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1981 to September 2010. The gray background is the average SSN index.
