Astronomic Ring Dial

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. 

Sundial. Portable universal (all latitudes) sundial. Universal Equatorial Solar Quadrant. One of most popular sundials of 17th 

This beautiful replica is fashioned of brass and features a wooden base. The wooden base is ideal for placement of a commemorative plaque in recognition of achievement or an event.

Also available in necklace version strung on cord and miniature desk model.

Diameter: 3.94"

Thickness: 0.16"