Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 17, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1087 | N20 | W17 | 07 | 0050 | Beta-Gamma | Jul 17, 2010 | Jul 23, 2010 | Aug 6, 2010 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1981 to July 2010. The gray background is the average SSN index.
