Planisphere
/ˈplæn.ɪ.sfɪər/noun
A map representing the celestial sphere as it appears at a specific time and place.
Did you know?In ancient times, planispheres were believed to not only chart the stars but also to predict celestial events, intertwining astronomy with mysticism.
Etymological Timeline
Late Latin
Latin
planisphaerium
“A flat model of a sphere.”
Medieval Latin
Medieval Latin
planisphaerium
“Representation of a celestial sphere on a flat surface.”
14th Century
Old French
planisphere
“A flat map of the heavens.”
Modern English
English
planisphere
“A celestial map aiding in navigation by stars.”