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 страници |
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Страница xxii
... become too well acquainted with the general configuration of the zoadical constellations not to notice the presence of a strange star in such a position . Once observed , 10 ° 35 135 IX 10 ° 130 125 120 2 SATURN AND ITS SYSTEM .
... become too well acquainted with the general configuration of the zoadical constellations not to notice the presence of a strange star in such a position . Once observed , 10 ° 35 135 IX 10 ° 130 125 120 2 SATURN AND ITS SYSTEM .
Страница 2
... becomes visible as a morning star . His apparent motion is still progressive , but gradually decreases until he becomes stationary . He then slowly retro- grades for nearly five months , passing through opposition ; be- comes stationary ...
... becomes visible as a morning star . His apparent motion is still progressive , but gradually decreases until he becomes stationary . He then slowly retro- grades for nearly five months , passing through opposition ; be- comes stationary ...
Страница 5
... becomes known with an exactness pro- portioned to the accuracy of the instruments used in effecting the measurement and the skill of the observer employing them . Let us now carry the earth and planet forward in their orbits . It is ...
... becomes known with an exactness pro- portioned to the accuracy of the instruments used in effecting the measurement and the skill of the observer employing them . Let us now carry the earth and planet forward in their orbits . It is ...
Страница 6
... becomes inclined at a smaller angle to the line of sight to the planet , till it coincides with that line ; and afterwards , as the earth passes on to conjunction , its motion ( con- sidered with reference to the line of sight at any ...
... becomes inclined at a smaller angle to the line of sight to the planet , till it coincides with that line ; and afterwards , as the earth passes on to conjunction , its motion ( con- sidered with reference to the line of sight at any ...
Страница 7
... becomes visible , however , the effect of its swifter motion in conjunction is seen in the change of its position among the zodiacal constellations . Passing from conjunction to opposition , the planet goes through the same changes in a ...
... becomes visible , however , the effect of its swifter motion in conjunction is seen in the change of its position among the zodiacal constellations . Passing from conjunction to opposition , the planet goes through the same changes in a ...
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angle aphelion appear ascending node astronomers atmosphere attractions body breadth celestial sphere Chaldæans circle conjunction considered corresponding Crown 8vo dark ring density determined diameter diminish disturbing division eccentricity ecliptic Edition effects ellipse equal equatorial equinox figure heliocentric hemisphere Herschel horizon inclined increase inner edge inner satellites interval Jupiter Jupiter's latitude less line of nodes line of sight longitude lunar major axis mean distance meridian miles moon moon's move nearly northern observer on earth opposition outer edge outer ring outline parallel path perihelion period phenomena plane of Saturn's planetary Plate pole position present quadrature R. A. Proctor represent respectively retrograde motion ring's plane rotation satellites Saturn Saturn's disc Saturn's globe Saturn's orbit Saturn's ring Saturnian seen shadow sidereal sidereal period solar southern spheroid stars sun's centre supposed synodical revolution Table telescope tion variations velocity vernal equinox vis viva vols Woodcuts