Outlines of astronomy |
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Page x
... given of this discovery , I trust to have expressed myself with complete impartiality ; and in the ex- position of the perturbative action on Uranus , by which the existence and situation of the disturbing planet became revealed to us ...
... given of this discovery , I trust to have expressed myself with complete impartiality ; and in the ex- position of the perturbative action on Uranus , by which the existence and situation of the disturbing planet became revealed to us ...
Page xxiv
... given Dates . Equinoctial time . Fixation of ancient dates by eclipses - 666 APPENDIX . I. Lists of Northern and Southern Stars , with their approximate Magnitudes , on the Vulgar and Photometric Scale II . Synoptic Table of the ...
... given Dates . Equinoctial time . Fixation of ancient dates by eclipses - 666 APPENDIX . I. Lists of Northern and Southern Stars , with their approximate Magnitudes , on the Vulgar and Photometric Scale II . Synoptic Table of the ...
Page 24
... given horizontal surface , confirms this impression , and affords a direct measure of the rate of diminution of the quantity of air which a given space includes as we recede from the surface . From its indications we learn , that when ...
... given horizontal surface , confirms this impression , and affords a direct measure of the rate of diminution of the quantity of air which a given space includes as we recede from the surface . From its indications we learn , that when ...
Page 50
... given change of our point of view is , cæteris paribus , less , as the distance of an object viewed is greater ; and when that distance is extremely great in comparison with the change in our point of view , the parallax becomes ...
... given change of our point of view is , cæteris paribus , less , as the distance of an object viewed is greater ; and when that distance is extremely great in comparison with the change in our point of view , the parallax becomes ...
Page 55
... given a degree of certainty to this conception , as a matter of fact , which attaches to no other creation of the human mind . - ( 78. ) To understand this conception in its further develop- ments , the reader must bear steadily in mind ...
... given a degree of certainty to this conception , as a matter of fact , which attaches to no other creation of the human mind . - ( 78. ) To understand this conception in its further develop- ments , the reader must bear steadily in mind ...
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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