The 18th Century Atlas Armillary Sphere measures 10" x 22". The base measures 8.75". An intriguing mix of early science and Greek mythology: one of the legendary Titans battling Zeus was defeated and decreed to carry the weight of the earth on his mighty shoudlers forever. Our armillary sphere, however, has Atlas carrying the entire universe. That's to say the known Renaissance universe, when the earth was still believed to be at it's center. Gracefully intertwined silver rings symbolize the position and trajectories of heavenly bodies around the earth. In all aspects ethereal, science combined with beauty, myth with historical fact.