Saturday, 9 May 2009

Map of the sky

From W105akaMoke

Star cartography
, celestial cartography,or uranography is the fringe of astronomy and branch of cartography concerned with mapping stars, galaxies, and other celestial bodies. Measuring the position and light of charted objects requires a variety of instruments and techniques that have developed from angle measurements with quadrants and the unaided eye, through sextants combined with lenses for light magnification, up to current methods which include computer automated space telescopes. Uranographers have historically produced planetary position tables, star tables and star maps for use by both amateur and professional astronomers. More recently computerized star maps have been compiled, and automated positioning of telescopes is accomplished using databases of stars and other astronomical objects.

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