heliometer

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English

Definitions

noun

An astronomical instrument, based on a telescope, for measuring the diameter of the sun; now used to measure the angular distance between stars and other celestial bodies.

Related words

Synonyms

heliometry heliograph photoheliometer spectroheliometer holometer halometer helioscope spectrohelioscope spectroheliograph solar telescope telephotometer pyrheliometer solar microscope astrophotometer astrometer megameter

Associated

parallax stellar observatory measurements built

References