Celestial coordinates: Quick Facts

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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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Galactic coordinate horizon system equatorial system ecliptic system Hour circle Altitude and azimuthazimuth celestial latitude equatorial coordinate celestial longitude azimuth Astronomical map Star catalog Celestial globe

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