planisphere

noun

pla·ni·sphere ˈplā-nə-ˌsfir

: a representation of the circles of the sphere on a plane

especially : a polar projection of the celestial sphere and the stars on a plane with adjustable circles or other appendages for showing celestial phenomena for any given time

planispheric

ˌplā-nə-ˈsfir-ik

-ˈsfer-

adjective

Example Sentences

Recent Examples on the Web Monthly sky maps take the place of a planisphere in this atlas, which covers both the northern and southern hemisphere. —

Popular Science, 13 Sep. 2019 Kids can craft their own planispheres and play games about the night sky. —

Sara Cagle, Los Angeles Times, 31 July 2019

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'planisphere.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.