celestial coordinates

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Celestial coordinates seen by an observer in mid-northern latitudes. His celestial meridian is a great circle passing through his zenith and the poles. His astronomical horizon meets the celestial sphere at infinity.

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Cathedrale St.Jean in Lyon, France has a 14th-century astronomical clock that shows religious feast days till the year 2019; Perpetual Calendar

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celestial coordinates: Related Content

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Celestial coordinates seen by an observer in mid-northern latitudes. His celestial meridian is a great circle passing through his zenith and the poles. His astronomical horizon meets the celestial sphere at infinity.

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Topics

galactic coordinate equatorial system horizon system ecliptic system hour circle altitude and azimuth azimuth equatorial coordinate celestial longitude celestial latitude astronomical map star catalog celestial globe

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