HELIOMETER

heliometer

(noun) an instrument used to measure the angular separation of two stars that are too far apart to be included in the field of view of an ordinary telescope

Source: WordNet® 3.1


Etymology

Noun

heliometer (plural heliometers)

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.

Source: Wiktionary


He`li*om"e*ter, n. Etym: [Helio- + -meter: cf. F. héliomètre.] (Astron.)

Definition: An instrument devised originally for measuring the diameter of the sun; now employed for delicate measurements of the distance and relative direction of two stars too far apart to be easily measured in the field of view of an ordinary telescope.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

3 July 2025

SENSE

(noun) the faculty through which the external world is apprehended; “in the dark he had to depend on touch and on his senses of smell and hearing”


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Coffee Trivia

Plain brewed coffee contains almost no calories, while coffee with dairy products, sugar, and other flavorings is much higher in calories. An espresso has 20 calories. A nonfat latte has 72, while a flavored one has 134.

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