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 vi
... passing over 98 ° 40 ′ 1 ′′ -3 and 100 ° 38 ' 1 " -8 , respectively , in longitude , from the autumnal equinoxes of their respective northern hemispheres . Thus the variations in the Saturnian seasons more directly illustrate the ...
... passing over 98 ° 40 ′ 1 ′′ -3 and 100 ° 38 ' 1 " -8 , respectively , in longitude , from the autumnal equinoxes of their respective northern hemispheres . Thus the variations in the Saturnian seasons more directly illustrate the ...
Страница xxi
... passing in splendour the brightest of the fixed stars , must at a very early period have attracted the notice of astronomical ob- servers , who could not fail soon to perceive that those orbs were changing their positions on the ...
... passing in splendour the brightest of the fixed stars , must at a very early period have attracted the notice of astronomical ob- servers , who could not fail soon to perceive that those orbs were changing their positions on the ...
Страница 1
... passes to the north - west of Regulus , and continues to move slowly westward . As Mars and Jupiter both appear to move from east to west when in opposition , though their real motion is from west to east , it remains doubtful whether ...
... passes to the north - west of Regulus , and continues to move slowly westward . As Mars and Jupiter both appear to move from east to west when in opposition , though their real motion is from west to east , it remains doubtful whether ...
Страница 2
... passing through opposition ; be- comes stationary again , then advances , and so on continually , advancing during seven months and a half and retrograding during five , but on the whole slowly traversing the zodiac from west to east ...
... passing through opposition ; be- comes stationary again , then advances , and so on continually , advancing during seven months and a half and retrograding during five , but on the whole slowly traversing the zodiac from west to east ...
Страница 5
... pass respectively over the arcs E E ' and PP ' , EE ' being greater than PP ' . Then it is obvious that the line E'P ' is inclined to the line EP , and that if these two lines are produced they will meet beyond P. Let them be produced ...
... pass respectively over the arcs E E ' and PP ' , EE ' being greater than PP ' . Then it is obvious that the line E'P ' is inclined to the line EP , and that if these two lines are produced they will meet beyond P. Let them be produced ...
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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