Outlines of astronomy |
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Page x
... existence and situation of the disturbing planet became revealed to us , I have endeavoured , in pursuance of the general plan of this work , rather to exhibit a rational view of the dynamical action , than to convey the slightest idea ...
... existence and situation of the disturbing planet became revealed to us , I have endeavoured , in pursuance of the general plan of this work , rather to exhibit a rational view of the dynamical action , than to convey the slightest idea ...
Page 25
... existence of any air at all would fail to afford the slightest perceptible indications of its presence . ( 34. ) Laying out of consideration , therefore , at present , all nice questions as to the probable existence of a definite limit ...
... existence of any air at all would fail to afford the slightest perceptible indications of its presence . ( 34. ) Laying out of consideration , therefore , at present , all nice questions as to the probable existence of a definite limit ...
Page 26
... existence of air dis- appears . ( 36. ) Arguments , however , are not wanting to render it , if not absolutely certain , at least in the highest degree pro- bable , that the surface of the aërial , like that of the aqueous ocean , has a ...
... existence of air dis- appears . ( 36. ) Arguments , however , are not wanting to render it , if not absolutely certain , at least in the highest degree pro- bable , that the surface of the aërial , like that of the aqueous ocean , has a ...
Page 27
... existence . It thus produces a false impression respecting their places , which must be rectified by ascertaining the amount and direction of the displacement so apparently produced on each , before we can come at a knowledge of the ...
... existence . It thus produces a false impression respecting their places , which must be rectified by ascertaining the amount and direction of the displacement so apparently produced on each , before we can come at a knowledge of the ...
Page 55
... existence , whether perceived by him or not ) ? By what rule is he to ascertain , from the appearances presented to him while himself in motion , what would be the appearances were he at rest ? It by no means follows , indeed , that he ...
... existence , whether perceived by him or not ) ? By what rule is he to ascertain , from the appearances presented to him while himself in motion , what would be the appearances were he at rest ? It by no means follows , indeed , that he ...
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Common terms and phrases
amount angle angular appear apsides ascertained astronomical attraction axis bright calculation celestial circle comet curve described diameter difference direction disc distance disturbed body disturbing force diurnal diurnal motion double stars earth ecliptic Edition effect epoch equal equator equinoctial equinox error exact excentricity fixed globe gravity heavens heliocentric hemisphere horizon inclination inequality instance instrument interval Julian period Jupiter latitude latter less light longitude lunar magnitude mass mean measure meridian moon moon's motion nearly nebula node normal force nutation object observed orbit parallax parallel perigee perihelion period perturbations phænomena planet planetary pole portion position precession proper motions proportion recede reckoned refraction remarkable respect result revolution revolving right ascension rotation round satellites Saturn seen sidereal sidereal day situation solar sphere spherical stars station sun's suppose surface syzygies tangential force telescope tion Uranus variation velocity visible vols whole zenith