Celatone

Noun

Word Frequency: 0.1

Definitions

1.NounA device invented by Galileo Galilei to observe Jupiter's moons with the purpose of finding longitude on Earth. It took the form of a piece of headgear with a telescope taking the place of an eyehole.

Synonyms

coelostat keplerian telescope galilean satellites coronograph astrolabe equatorial meteoroscope nocturlabe transit instrument cosmolabe coronagraph cosmosphere

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