The Heavens and the Earth: Or, Familiar Illustrations of Astronomy

Admiral Smyth ancient apparent magnitude appear Arcturus astronomical atmosphere attraction axis bodies Boötes bright celestial centre century clouds colour comet computed constellation Copernicus dark diameter direction discovery disk earth east eclipse equal equator favour firmament Galileo globe greater heat heavens hemisphere Hence Herschel horizon immense instrument interval Julius Cæsar Jupiter Kepler known latitude latter law of Kepler less light longitude luminary luminous lunar lunar eclipse magnitude Mars mean distance Mercury meteors millions of miles minutes moon moon's motion move naked eye nature nearly Neptune night object obscuration observatory observed ocean orbit owing parallax passing period phenomena planet planetary position rays remarkable respecting revolution revolving rotation round the earth round the sun satellites Saturn seasons seen shadow solar system space spots sun's supposed surface tail telescope terrestrial thousand tion transit Tycho Brahe universe Uranus velocity Venus visible