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1 celestial equinox
subst. eller equinoctial (line)( astronomi) himmelens ekvator -
2 equinoctial
Isubst. \/ˌiːkwɪˈnɒkʃ(ə)l\/, \/ˌekwɪˈnɒkʃ(ə)l\/ eller equinoctial line eller celestial equinox( astronomi) himmelens ekvatorIIadj. \/ˌiːkwɪˈnɒkʃ(ə)l\/, \/ˌekwɪˈnɒkʃ(ə)l\/1) som gjelder jevndøgn, som inntreffer ved jevndøgn, jevndøgns-, ekvinoktial2) (botanikk, om blomst) som åpner seg regelmessig til et bestemt tidspunkt på døgnet
См. также в других словарях:
Celestial meridiator — is a vertical imaginary line that goes over the celestial poles and crosses (perpendicular to) the celestial equator. There are two celestial meridiators on the celestial sphere: Equinox meridiator and Solstice meridiator.NameThe meridiators are… … Wikipedia
equinox — [ē′kwi näks΄, ek′wə näks] n. [ME < OFr equinoxe < ML aequinoxium < L aequinoctium < aequus (see EQUAL) + nox, NIGHT] 1. the time when the sun in its apparent annual movement along the ecliptic crosses the celestial equator, making… … English World dictionary
Celestial sphere — [ celestial equator.] In astronomy and navigation, the celestial sphere is an imaginary rotating sphere of gigantic radius , concentric and coaxial with the Earth. All objects in the sky can be thought of as lying upon the sphere. Projected from… … Wikipedia
equinox — ► NOUN ▪ the time or date (twice each year, about 22 September and 20 March) at which the sun crosses the celestial equator and when day and night are of equal length. ORIGIN Latin aequinoctium, from aequus equal + nox night … English terms dictionary
celestial longitude — n. Astron. the arc of the ecliptic measured eastward from the vernal equinox to the point where the ecliptic is intersected by the great circle through the star, planet, etc. and the poles of the ecliptic … English World dictionary
Equinox — This article is about the astronomical event when the sun is at zenith over the Equator. For other uses, see Equinox (disambiguation). For the same event happening on other planets and setting up a celestial coordinate system, see Equinox… … Wikipedia
Equinox (celestial coordinates) — In astronomy, equinox is a moment in time at which the vernal point, celestial equator, and other such elements are taken to be used in the definition of a celestial coordinate system. The position at other equinoxes can be computed by taking… … Wikipedia
equinox — /ee kweuh noks , ek weuh /, n. 1. the time when the sun crosses the plane of the earth s equator, making night and day of approximately equal length all over the earth and occurring about March 21 (vernal equinox or spring equinox) and September… … Universalium
Equinox (disambiguation) — An equinox in astronomy is the event when the Sun can be observed to be directly above the equator.Equinox may also refer to:Astronomy* Equinox (celestial coordinates), a moment of time chosen for a moving celestial coordinate system such as… … Wikipedia
equinox — i. One of the two points of intersection of the ecliptic and the celestial equators, occupied by the sun when its declination is 0°. Also called an equinoctial point. That point occupied on or about March 21, when the sun’s declination changes… … Aviation dictionary
equinox — Synonyms and related words: aphelion, apogee, astronomical longitude, autumnal equinox, celestial equator, celestial longitude, celestial meridian, circle, colures, ecliptic, equator, equinoctial, equinoctial circle, equinoctial colure, galactic… … Moby Thesaurus