Saturn and Its System: Containing Discussions of the Motions (real and Apparent) and Telescopic Appearance of the Planet Saturn, Its Satellites, and Rings; the Nature of the Rings; the Great Inequality of Saturn and Jupiter; and the Habitability of Saturn. To which are Appended Notes on Chaldæan Astronomy, Laplace's Nebular Theory, and the Habitability of the Moon; a Series of Tables with Explanatory Notes; and Explanations of Astronomical TermsLongman, Green, Longman, Roberts, & Green, 1865 - 252 páginas |
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Términos y frases comunes
angle aphelion appear ascending node astronomers atmosphere body breadth celestial sphere Chaldæans changes circle conjunction considered corresponding dark ring density determined diameter diminish disturbing division eccentricity ecliptic effects ellipse equal equatorial equinox figure greater heliocentric hemisphere Herschel horizon inclined increase inner edge inner satellites interval Jupiter Jupiter's latitude law of Kepler less line of nodes line of sight longitude major axis mean distance meridian miles moon moon's move nearly northern observer on earth opposition outer edge outer ring p's orbit P₁ parallel passes path perihelion period plane of Saturn's Plate pole position present proportion quadrature represented respectively retrograde motion revolve ring's plane rotation satellites Saturn Saturn's disc Saturn's equator Saturn's globe Saturn's orbit Saturn's ring Saturnian seen shadow sidereal sidereal period solstice spheroid stars sun's centre supposed surface synodical revolution tangent telescope tion variations vernal equinox vis viva visible width winter solstice