astrograph

noun
as·​tro·​graph | \ ˈastrōˌgraf \
plural -s

Definition of astrograph

1 : a photographic telescope designed for use in mapping the heavens
2 : a now little used navigational instrument for projecting star-altitude curves from film directly onto a Mercator chart of proper scale

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History and Etymology for astrograph

International Scientific Vocabulary astr- + -graph

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Cite this Entry

“Astrograph.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/astrograph. Accessed 20 Oct. 2020.

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