Outlines of astronomy |
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Page xxii
... advance and recess . Cases of an exterior planet disturbed by an interior . The reverse case . In every case the node of the dis- turbed orbit recedes on the plane of the disturbing on an average . Combined effect of many such ...
... advance and recess . Cases of an exterior planet disturbed by an interior . The reverse case . In every case the node of the dis- turbed orbit recedes on the plane of the disturbing on an average . Combined effect of many such ...
Page 5
... advances in this or any other of the higher departments of science as can entitle him to form an independent opinion on any subject of discussion within their range . It is not without an effort that those who possess this knowledge can ...
... advances in this or any other of the higher departments of science as can entitle him to form an independent opinion on any subject of discussion within their range . It is not without an effort that those who possess this knowledge can ...
Page 28
... advances downwards , the strata continually increasing in density , it will continually undergo greater and greater refraction in the same direction ; and thus , instead of pur- suing the straight line S d A , it will describe a curve ...
... advances downwards , the strata continually increasing in density , it will continually undergo greater and greater refraction in the same direction ; and thus , instead of pur- suing the straight line S d A , it will describe a curve ...
Page 42
... advances , he will not fail to perceive that they have changed their places , and advanced , as by a general movement , in a westward direction ; those towards the eastern quarter appearing to rise or recede from the horizon , while ...
... advances , he will not fail to perceive that they have changed their places , and advanced , as by a general movement , in a westward direction ; those towards the eastern quarter appearing to rise or recede from the horizon , while ...
Page 46
... advances to the south , some of those con- stellations which , at his original station , barely grazed the northern horizon , will be observed to sink below it and set ; at first remaining hid only for a very short time , but gra ...
... advances to the south , some of those con- stellations which , at his original station , barely grazed the northern horizon , will be observed to sink below it and set ; at first remaining hid only for a very short time , but gra ...
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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