Concept information
Preferred term
Armillary spheres
Definition
- An ancient instrument, used since ancient times until the Middle ages and later, to determine positions of celestial bodies. It consisted of an assemblage of rings, all circles of the same sphere, designed to represent the positions of the important circles of the celestial sphere. (en)
Broader concept
Entry terms
- Armil (en)
- Armilla (en)
- Spherical astrolabes (en)
URI
http://astrothesaurus.org/uat/67
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