Outlines of astronomy |
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Page xii
... considerable additions , that it has been considered preferable ( another edition being called for ) , not indeed to recast the general plan of the work , but to incorporate these in it in due order and sequence , thereby materially ...
... considerable additions , that it has been considered preferable ( another edition being called for ) , not indeed to recast the general plan of the work , but to incorporate these in it in due order and sequence , thereby materially ...
Page 9
... considerable branch of science without receiving and discarding in succession many crude and incomplete notions , which so far from injuring the truth in its ulti- mate reception , act as positive aids to its attainment by acquainting ...
... considerable branch of science without receiving and discarding in succession many crude and incomplete notions , which so far from injuring the truth in its ulti- mate reception , act as positive aids to its attainment by acquainting ...
Page 16
... considerable with respect to ourselves and to that small portion of it which we can see at a single view , to allow of our forming any judgment of the form of the whole , from that of a part so dis- figured . But with the surface of the ...
... considerable with respect to ourselves and to that small portion of it which we can see at a single view , to allow of our forming any judgment of the form of the whole , from that of a part so dis- figured . But with the surface of the ...
Page 24
... considerable elevation above the surface of the earth , either in a balloon , or on mountains , we are made aware , by many uneasy sensations , of an insufficient supply of air . The barometer , an instrument which informs us of the ...
... considerable elevation above the surface of the earth , either in a balloon , or on mountains , we are made aware , by many uneasy sensations , of an insufficient supply of air . The barometer , an instrument which informs us of the ...
Page 27
... considerable permanent depressions of the contours of these strata , below their general or spherical level , subsist . But these are points of consideration rather for the meteoro- logist than the astronomer . It must be observed ...
... considerable permanent depressions of the contours of these strata , below their general or spherical level , subsist . But these are points of consideration rather for the meteoro- logist than the astronomer . It must be observed ...
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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