Schiaparelli Mars Map, 1877-78

Schiaparelli's Mappa Aerographica of Mars, Stereographic projection, 1877-78. Giovanni Virginio Schiaparelli (1835-1910) was an Italian astronomer and science historian. In 1888, Schiaparelli announced the discovery of a network of narrow lines on Mars, which he described as canali, an Italian word that means channels. In Italian, the word can mean a natural channel like a river valley. Stereographic projection is a particular mapping (function) that projects a sphere onto a plane. The projection is defined on the entire sphere, except at one point: the projection point. Where it is defined, the mapping is smooth and bijective

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1877 Canals Channels Enhance Epromo-history-color Mappa Projection Schiaparelli Stereographic Terrestrial Topography Virginio

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