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
... 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 a direction con- trary to that ...
... 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 a direction con- trary to that ...
Страница 1
... indicated in Plate II . , and that he is first observed when in opposition near the bright star Regulus . The time then is mid - winter . The heavens - in the eastern clime of those first astronomers -- are sparkling as if set with ...
... indicated in Plate II . , and that he is first observed when in opposition near the bright star Regulus . The time then is mid - winter . The heavens - in the eastern clime of those first astronomers -- are sparkling as if set with ...
Страница 4
... indicated , since Saturn's motion when in opposition is very slow , * and a very small error in the determination of the arc he daily traverses at this time would altogether vitiate the result of calculation or construction founded upon ...
... indicated , since Saturn's motion when in opposition is very slow , * and a very small error in the determination of the arc he daily traverses at this time would altogether vitiate the result of calculation or construction founded upon ...
Страница 8
... indicates the posi- 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 ...
... indicates the posi- 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 ...
Страница 23
... indicate their correspondence with the points p and p " in the synodical revolution next considered . † While traversing parts of the path near P and P " , Saturn is not visible from the earth , being near conjunction ; if he were ...
... indicate their correspondence with the points p and p " in the synodical revolution next considered . † While traversing parts of the path near P and P " , Saturn is not visible from the earth , being near conjunction ; if he were ...
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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