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17th century Italian book dial, Bliss Collection of Astronomical Instruments

DF_2010.jpg

DF_2010

17th century Italian book dial, Bliss Collection of Astronomical Instruments

2018

Digital Photographs

The back of this handsomely crafted dial is designed for use at night. The user held the dial vertically, adjusted the shorter sighting rule to align with the pointer stars of the Big Dipper, and then looked to see on what hour the edge of the rule landed.

Italy

Bliss Collection of Astronomical Instruments

Information on rights available at the repository.

Astrophysics

Collection

Citation

Finnin, Denis (photographer), “17th century Italian book dial, Bliss Collection of Astronomical Instruments,” AMNH Research Library | Digital Special Collections, accessed September 16, 2019, http://lbry-web-007.amnh.org/digital/index.php/items/show/85878.