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 ix
... tion of the planetary motions is indicated in this figure , in fig . 1 , Plate VIII . , and in fig . 7 , Plate X. , by the Zodiacal signs outside the orbit of Saturn ; that is , the motions are supposed in these figures to take place in ...
... tion of the planetary motions is indicated in this figure , in fig . 1 , Plate VIII . , and in fig . 7 , Plate X. , by the Zodiacal signs outside the orbit of Saturn ; that is , the motions are supposed in these figures to take place in ...
Страница 7
... tion would be proportional to V + V D + d D - d ' ; but from the proportion deduced above , it follows that 1 1 1 1 v + v D2 - de D2 + dź : D - d D + d D d D + d :: D + d : ( D31 + d3 ) 2 ; 1 1 1 = that is , ( since ( D + d ) 2 - D + d ...
... tion would be proportional to V + V D + d D - d ' ; but from the proportion deduced above , it follows that 1 1 1 1 v + v D2 - de D2 + dź : D - d D + d D d D + d :: D + d : ( D31 + d3 ) 2 ; 1 1 1 = that is , ( since ( D + d ) 2 - D + d ...
Страница 8
... tion that Saturn appears to be stationary , it is clear that the earth's motion must be much swifter than Saturn's . Hence we have only one possible explanation left of the slowness of Saturn's retrograde motion ; namely , that it is ...
... tion that Saturn appears to be stationary , it is clear that the earth's motion must be much swifter than Saturn's . Hence we have only one possible explanation left of the slowness of Saturn's retrograde motion ; namely , that it is ...
Страница 13
... tion . The construction may then be repeated , using this result to represent SP more correctly . In this way the ratio of Saturn's velocity to the earth's may be obtained with greater exactness than by the two former methods ; for , in ...
... tion . The construction may then be repeated , using this result to represent SP more correctly . In this way the ratio of Saturn's velocity to the earth's may be obtained with greater exactness than by the two former methods ; for , in ...
Страница 8
... tion of the node . Saturn , as we have already seen , may appear behind , or in advance of his true place , at the moment of passing his node . If the correction due to this cause were made , how- ever , the position of Saturn's node ...
... tion of the node . Saturn , as we have already seen , may appear behind , or in advance of his true place , at the moment of passing his node . If the correction due to this cause were made , how- ever , the position of Saturn's node ...
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Често срещани думи и фрази
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