Outlines of Astronomy |
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Page ix
... regarded as one of the noblest triumphs of theory . In the account here given of this discovery , I trust to have expressed myself with complete impartiality ; and in the exposition of the perturbative action on Uranus , by which the ...
... regarded as one of the noblest triumphs of theory . In the account here given of this discovery , I trust to have expressed myself with complete impartiality ; and in the exposition of the perturbative action on Uranus , by which the ...
Page 24
... regarded as an individual body , is one principal object of the astronomer's consideration , and indeed , the chief of all . It derives its importance , in 86 1 · Aorno , a slar ; voμos , a law ; or vεμɛv , to tend , as a shepherd , his ...
... regarded as an individual body , is one principal object of the astronomer's consideration , and indeed , the chief of all . It derives its importance , in 86 1 · Aorno , a slar ; voμos , a law ; or vεμɛv , to tend , as a shepherd , his ...
Page 31
... regarded as trifling deviations from the general outline of the whole mass , as we consider an orange not the less round for the roughness on its rind . 2dly , That the appearance of a visible horizon , or sea - offing , is a ...
... regarded as trifling deviations from the general outline of the whole mass , as we consider an orange not the less round for the roughness on its rind . 2dly , That the appearance of a visible horizon , or sea - offing , is a ...
Page 50
... regarded as one great constellation , which seems to revolve with a uniform motion , as if it formed one coherent mass ; or as if it were attached to the internal surface of a vast hollow sphere , having the earth , or rather the ...
... regarded as one great constellation , which seems to revolve with a uniform motion , as if it formed one coherent mass ; or as if it were attached to the internal surface of a vast hollow sphere , having the earth , or rather the ...
Page 67
... regarded as the celestial meridians of fixed points on the earth's surface , since , in the course of one diurnal revolution , every point in it passes beneath each of them . It is on account of this change of conception , and with a ...
... regarded as the celestial meridians of fixed points on the earth's surface , since , in the course of one diurnal revolution , every point in it passes beneath each of them . It is on account of this change of conception , and with a ...
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Common terms and phrases
altitude amount angle angular appear apsides ascertained astronomers axis bright calculation celestial centre circle comet curve described diameter difference direction disc distance disturbed body disturbing force diurnal diurnal motion double stars earth ecliptic effect ellipse epoch equal equator equinoctial equinox error exact excentricity fixed globe gravity greater heavens heliocentric horizon inclination increase inequality instance instrument interval 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 perpendicular perturbations planet planetary pole portion position precession proper motions proportion recede recess reckoned refraction remarkable respect result revolution right ascension rotation round satellites Saturn seen sidereal sidereal day sidereal period situation solar sphere spherical stars station sun's suppose syzygies tangential force telescope tion Uranus variation velocity visible whole zenith