Compatible with all german equatorial eq astromaster and powerseeker telescopes variable speed ra motor drive offering the convenience of hands free tracking of astronomical objects the celestron motor drive allows tracking of celestial objects with this single axis motor drive for the cg 2 and cg 3 eq mounts compatible with astromaster 70eq astromaster 76eq astromaster 90eq astromaster 114eq astromaster 130eq powerseeker 70eq powerseeker 60eq powerseeker 80eq