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http://www.astrosociety.org/pubs/mercury/9606/comets.html.
http://www.astrosociety.org/pubs/mercury/9606/comets.html.
1. ASP: Guest Observer
home publications > mercury . ... Astronomy Beat . ... Nearly four centuries ago, Galileo's simple observations of Earth's planetary sibling, Venus, buoyed the proponents of a Copernican universe. ... The Italian astronomer had settled into a new house in Florence and had begun to observe Venus, which in November 1610 would have appeared as an evening star, bright in the western sky after dusk. ... From these two observations, Galileo inferred that Venus must orbit closer to the Sun than does Earth. ...
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Ссылки http://www.astrosociety.org/pubs/mercury/9601/venus.html -- 22.8 Кб -- 20.04.2012
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