Cosmos: A Sketch of a Physical Description of the Universe, Nide 4

according aphelion appear Arago Astr astronomer atmosphere Cape Catalogue central body century clusters of stars color comets Compare conjecture cosmical bodies Cosmos dark density diameter discovered discovery Dominique Cassini double stars Earth eccentricity eclipse ecliptic envelope epoch existence fixed stars Galileo geographical miles heavens hemisphere intensity Jupiter Kepler l'Acad light Lord Rosse lumière luminous Mädler Magellanic Clouds magnitude Mars mass mean distance Mercury meteoric Milky Moon Nachr naked eye nebulous nebulous spots Neptune Nubecula nucleus observed orbits Orion penumbra periods of revolution phenomenon Philos photosphere polar polariscope pole portion present principal planets probably reference regions remarkable resolved Right Ascension ring rotation satellites Saturn seen self-luminous shooting stars Simon Marius Sir John Herschel small planets solar system Solis southern space Sun's disk surface sword of Orion telescope tion Uranus vapor Venus visible William Herschel Wotan zodiacal zodiacal light