Right ascension and Declination setting circles used to upgrade the Great Polaris 2 and Economy version of German Equatorial Mount. Can also be used as a repair part for GPD2 setting circles (supplied with the mount). When used correctly, these circles help the astronomer define the coordinate that the telescope is currently viewing, or conversely, helps the astronomer go to the correct coordinate to find an astronomical object.
- Machined Steel Graduated in 24 Hours of Right Ascension and +-90 Degrees of Declination
- Works with Great Polaris 2 , Great Polaris D2 and Great Polaris Economy Mounts
- Defines Coordinate that telescope is pointing
- Weight 4.2 lbs. comes un-boxed 4 x 4.5 x 2 inches