Definition of prime vertical transit instrument in English:

prime vertical transit instrument

(also prime vertical transit, prime vertical instrument)

noun

Astronomy

A transit instrument incorporating a telescope which revolves in the plane of the prime vertical circle, used for timing the passage of a celestial object across this circle.

Mid 19th century; earliest use found in United States Magazine and Democratic Review.

(also prime vertical transit, prime vertical instrument)

noun

Astronomy

A transit instrument incorporating a telescope which revolves in the plane of the prime vertical circle, used for timing the passage of a celestial object across this circle.

Mid 19th century; earliest use found in United States Magazine and Democratic Review.

单词	prime vertical transit instrument
释义	Definition of prime vertical transit instrument in English: prime vertical transit instrument (also prime vertical transit, prime vertical instrument) noun Astronomy A transit instrument incorporating a telescope which revolves in the plane of the prime vertical circle, used for timing the passage of a celestial object across this circle. Origin Mid 19th century; earliest use found in United States Magazine and Democratic Review. Definition of prime vertical transit instrument in US English: prime vertical transit instrument (also prime vertical transit, prime vertical instrument) noun Astronomy A transit instrument incorporating a telescope which revolves in the plane of the prime vertical circle, used for timing the passage of a celestial object across this circle. Origin Mid 19th century; earliest use found in United States Magazine and Democratic Review.
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