equinoctial circle

equinoctial circle
noun
the great circle on the celestial sphere midway between the celestial poles
Derivationally related forms: ↑equinoctial (for: ↑equinoctial)
Hypernyms: ↑great circle

* * *

noun or equinoctial line

* * *

Astron.
[1350-1400; ME]

* * *

equinoctial circle,
= celestial equator. (Cf.celestial equator)

Useful english dictionary. 2012.

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Look at other dictionaries:

  • equinoctial circle — or equinoctial line n. CELESTIAL EQUATOR …   English World dictionary

  • equinoctial circle — Astron. See celestial equator. [1350 1400; ME] * * * …   Universalium

  • equinoctial line — noun the great circle on the celestial sphere midway between the celestial poles • Syn: ↑celestial equator, ↑equinoctial circle, ↑equinoctial • Derivationally related forms: ↑equinoctial (for: ↑equinoctial) …   Useful english dictionary

  • circle — Synonyms and related words: O, acquaintance, advance, alentours, alternate, ambience, ambit, anklet, annular muscle, annulus, anthelion, antisun, aphelion, apogee, arc, arena, areola, armlet, arsis, ascend, associates, astronomical longitude,… …   Moby Thesaurus

  • equinoctial line — /ˌikwənɒkʃəl ˈlaɪn/ (say .eekwuhnokshuhl luyn) noun the celestial equator. Also, equinoctial circle …  

  • equinoctial — Equator E*qua tor, n. [L. aequator one who equalizes: cf. F. [ e]quateur equator. See {Equate}.] 1. (Geog.) The imaginary great circle on the earth s surface, everywhere equally distant from the two poles, and dividing the earth s surface into… …   The Collaborative International Dictionary of English

  • equinoctial line — Equator E*qua tor, n. [L. aequator one who equalizes: cf. F. [ e]quateur equator. See {Equate}.] 1. (Geog.) The imaginary great circle on the earth s surface, everywhere equally distant from the two poles, and dividing the earth s surface into… …   The Collaborative International Dictionary of English

  • equinoctial colure — noun : the circle of 0 and 12 hours right ascension passing through the equinoctial points of the celestial sphere * * * equinoctial colure, the great circle passing through the poles and equinoctial points …   Useful english dictionary

  • equinoctial colure — That great circle of the celestial sphere through the celestial poles and equinoxes. The hour circle of the vernal equinox. It is an imaginary point among the stars where the sun apparently crosses the equator from south to north on or about… …   Aviation dictionary

  • equinoctial — 1. adjective a) of, or relating to an equinox b) of, or relating to the celestial or terrestrial equator 2. noun a) the …   Wiktionary

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