Hanging Astronomic Ring Dial

Miniature astronomical ring dial. Height sundial. 17th and 18th century.

Also known as the Universal Equinoctial Ring Sundial, this instrument is used to determine Solar time. The ring dial, the armillary, or dials indicate the principal circles of the heavenly sphere: the meridian, the equator, and the solstice meridian. 

This beautiful miniature replica is fashioned of brass and hung on a cord.

Also available in miniature and larger desk models

Diameter:1.77"

Thickness: 0.16"