Outlines of astronomy |
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Page 6
... body of science to meet its exigencies . The difference is that of pioneering a road through an untraversed country and advancing at ease along a broad and beaten highway ; that is to say , if we are determined to make ourselves ...
... body of science to meet its exigencies . The difference is that of pioneering a road through an untraversed country and advancing at ease along a broad and beaten highway ; that is to say , if we are determined to make ourselves ...
Page 12
... bodies , the earth itself , 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 a practical as well as theoretical sense , not ...
... bodies , the earth itself , 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 a practical as well as theoretical sense , not ...
Page 25
... body of air incumbent on the earth's surface . From the progression of these numbers , as well as , à priori , from the nature of the air itself , which is compressible , i . e . ca- pable of being condensed or crowded into a smaller ...
... body of air incumbent on the earth's surface . From the progression of these numbers , as well as , à priori , from the nature of the air itself , which is compressible , i . e . ca- pable of being condensed or crowded into a smaller ...
Page 29
... bodies higher above the horizon in appearance than they are in reality . Any such body , situated actually in the true horizon , will appear above it , or will have some certain apparent altitude ( as it is called ) . Nay , even some of ...
... bodies higher above the horizon in appearance than they are in reality . Any such body , situated actually in the true horizon , will appear above it , or will have some certain apparent altitude ( as it is called ) . Nay , even some of ...
Page 41
... body under the influence of external agency are conceivable , in which the poles of the imaginary line or axis about which it is at any moment revolving shall hold no fixed places on the surface , but shift upon it every moment . Such ...
... body under the influence of external agency are conceivable , in which the poles of the imaginary line or axis about which it is at any moment revolving shall hold no fixed places on the surface , but shift upon it every moment . Such ...
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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