Great Astronomers |
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accordingly actually Airy appeared astro Astronomer Royal attention attraction became Birr Castle Bradley Brinkley calculations Cambridge career celestial sphere centre circle circumstances comet commenced consequence Copernicus course determined devoted direction discovery distance disturbance doctrine double stars doubt Dublin Dunsink earth ellipse explained fact fame famous father Flamsteed friends Galileo genius Greenwich Halley Hamilton happened heavenly bodies heavens Hipparchus Hven illustrious instruments interest investigation Isaac Isaac Newton Kepler known labours Laplace letters light Lord Rosse lunar Mars mathematical mathematician ment mirror moon motion move movements nature nebula Newton object observations observatory obtained once orbit philosopher planet planetary position possessed present Professor Ptolemy Quaternions refracting telescope regarded remarkable researches revolution revolved rotation Royal Society scientific seems showed Sir John Herschel solar system supposition telescope theory thought tion Trinity College Tycho Tycho Brahe University Uraniborg Uranus Venus Verrier William Herschel