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- Meridian_(astronomy) abstract "An (astronomical) meridian is the great circle passing through the celestial poles, the zenith, and the nadir of a particular location. Consequently, it contains also the horizon's north and south points, and it is perpendicular to the celestial equator and to the celestial horizon. A celestial meridian matches the projection, onto the celestial sphere, of a terrestrial meridian. Hence there are an infinite number of meridians. The meridian is undefined when the observer is at the North Pole or South Pole, since at these two points, the zenith and nadir are on the celestial poles, and any great circle passing the celestial poles passes the zenith and nadir.There are several ways in which the meridian can be divided into semicircles. In one way, it's divided into the local meridian and the antimeridian. The former semicircle contains the zenith and is terminated by the celestial poles; the latter semicircle contains the nadir. In the horizontal coordinate system the meridian is divided into halves terminated by the horizon's north and south points. The upper meridian passes through the zenith, and the lower meridian, through the nadir.A celestial object will appear to drift past the local meridian as the Earth spins, for the meridian is fixed to the local horizon. The object reaches its highest point in the sky when crossing the meridian (culmination). Using an object's right ascension and the local sidereal time it is possible to determine the time of its culmination. (See hour angle).The term \"meridian\" comes from the Latin meridies, which means both \"midday\" and \"south\".".
- Meridian_(astronomy) thumbnail Meridian_on_celestial_sphere.png?width=300.
- Meridian_(astronomy) wikiPageID "629026".
- Meridian_(astronomy) wikiPageLength "2318".
- Meridian_(astronomy) wikiPageOutDegree "18".
- Meridian_(astronomy) wikiPageRevisionID "691307368".
- Meridian_(astronomy) wikiPageWikiLink Category:Celestial_coordinate_system.
- Meridian_(astronomy) wikiPageWikiLink Celestial_equator.
- Meridian_(astronomy) wikiPageWikiLink Celestial_pole.
- Meridian_(astronomy) wikiPageWikiLink Celestial_sphere.
- Meridian_(astronomy) wikiPageWikiLink Culmination.
- Meridian_(astronomy) wikiPageWikiLink Great_circle.
- Meridian_(astronomy) wikiPageWikiLink Horizontal_coordinate_system.
- Meridian_(astronomy) wikiPageWikiLink Hour_angle.
- Meridian_(astronomy) wikiPageWikiLink Longitude.
- Meridian_(astronomy) wikiPageWikiLink Meridian_(geography).
- Meridian_(astronomy) wikiPageWikiLink Nadir.
- Meridian_(astronomy) wikiPageWikiLink Prime_meridian.
- Meridian_(astronomy) wikiPageWikiLink Right_ascension.
- Meridian_(astronomy) wikiPageWikiLink Sidereal_time.
- Meridian_(astronomy) wikiPageWikiLink Zenith.
- Meridian_(astronomy) wikiPageWikiLink File:Meridian_on_celestial_sphere.png.
- Meridian_(astronomy) wikiPageWikiLinkText "Meridian (astronomy)".
- Meridian_(astronomy) wikiPageWikiLinkText "Meridian".
- Meridian_(astronomy) wikiPageWikiLinkText "astronomical meridian".
- Meridian_(astronomy) wikiPageWikiLinkText "astronomical meridians".
- Meridian_(astronomy) wikiPageWikiLinkText "celestial meridian".
- Meridian_(astronomy) wikiPageWikiLinkText "la Meridiana".
- Meridian_(astronomy) wikiPageWikiLinkText "local meridian".
- Meridian_(astronomy) wikiPageWikiLinkText "meridian (astronomy)".
- Meridian_(astronomy) wikiPageWikiLinkText "meridian line".
- Meridian_(astronomy) wikiPageWikiLinkText "meridian plane".
- Meridian_(astronomy) wikiPageWikiLinkText "meridian".
- Meridian_(astronomy) wikiPageWikiLinkText "meridians".
- Meridian_(astronomy) wikiPageWikiLinkText "meridional".
- Meridian_(astronomy) wikiPageUsesTemplate Template:!.
- Meridian_(astronomy) wikiPageUsesTemplate Template:About.
- Meridian_(astronomy) wikiPageUsesTemplate Template:Astronomy-stub.
- Meridian_(astronomy) wikiPageUsesTemplate Template:Cartography-stub.
- Meridian_(astronomy) subject Category:Celestial_coordinate_system.
- Meridian_(astronomy) hypernym Circle.
- Meridian_(astronomy) type Place.
- Meridian_(astronomy) comment "An (astronomical) meridian is the great circle passing through the celestial poles, the zenith, and the nadir of a particular location. Consequently, it contains also the horizon's north and south points, and it is perpendicular to the celestial equator and to the celestial horizon. A celestial meridian matches the projection, onto the celestial sphere, of a terrestrial meridian. Hence there are an infinite number of meridians.".
- Meridian_(astronomy) label "Meridian (astronomy)".
- Meridian_(astronomy) sameAs Q148901.
- Meridian_(astronomy) sameAs خط_زوال_سماوي.
- Meridian_(astronomy) sameAs Meridian_(Astronomie).
- Meridian_(astronomy) sameAs Ωρικός_κύκλος.
- Meridian_(astronomy) sameAs Taevameridiaan.
- Meridian_(astronomy) sameAs نصفالنهار_سماوی.
- Meridian_(astronomy) sameAs Plan_méridien.
- Meridian_(astronomy) sameAs Nebeski_meridijan.
- Meridian_(astronomy) sameAs Meridián_(csillagászat).
- Meridian_(astronomy) sameAs Meridian_(astronomi).
- Meridian_(astronomy) sameAs Hábaugur.
- Meridian_(astronomy) sameAs Meridiano_locale.
- Meridian_(astronomy) sameAs Meridian_(Astronomie).
- Meridian_(astronomy) sameAs Dangaus_dienovidinis.
- Meridian_(astronomy) sameAs Meridian_(astronomi).
- Meridian_(astronomy) sameAs Południk_niebieski.
- Meridian_(astronomy) sameAs Meridiano_(astronomia).
- Meridian_(astronomy) sameAs m.02yd4v.
- Meridian_(astronomy) sameAs Nebeski_meridijan.
- Meridian_(astronomy) sameAs Meridián_(astronómia).
- Meridian_(astronomy) sameAs Nebesni_poldnevnik.
- Meridian_(astronomy) sameAs Небески_меридијан.
- Meridian_(astronomy) sameAs Astronomiskt_meridianplan.
- Meridian_(astronomy) sameAs Meridyano_(astronomiya).
- Meridian_(astronomy) sameAs Meridyen_(astronomi).
- Meridian_(astronomy) sameAs Q148901.
- Meridian_(astronomy) sameAs 子午圈.
- Meridian_(astronomy) wasDerivedFrom Meridian_(astronomy)?oldid=691307368.
- Meridian_(astronomy) depiction Meridian_on_celestial_sphere.png.
- Meridian_(astronomy) isPrimaryTopicOf Meridian_(astronomy).