Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 pages |
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Page 38
... latter , only that portion of it which remains constantly opposite to him , and immediately under his eye . ( 53. ) By such a rotation of the earth , then , as we have supposed , the horizon of a stationary spectator will be con ...
... latter , only that portion of it which remains constantly opposite to him , and immediately under his eye . ( 53. ) By such a rotation of the earth , then , as we have supposed , the horizon of a stationary spectator will be con ...
Page 53
... latter as the true explanation of these phenomena , avoiding thereby the necessity of otherwise resorting to the cumbrous mechanism of a solid but invisible sphere , to which the stars must be supposed attached , in order that they may ...
... latter as the true explanation of these phenomena , avoiding thereby the necessity of otherwise resorting to the cumbrous mechanism of a solid but invisible sphere , to which the stars must be supposed attached , in order that they may ...
Page 59
... latter is its proper designation . Longitude is also reckoned in time at the rate of 24 h . for 360 ° , or 15 ° per hour . In this system the longitude of Paris is 23 h . 50 m . 38s . * ( 92. ) Knowing the longitude and latitude of a ...
... latter is its proper designation . Longitude is also reckoned in time at the rate of 24 h . for 360 ° , or 15 ° per hour . In this system the longitude of Paris is 23 h . 50 m . 38s . * ( 92. ) Knowing the longitude and latitude of a ...
Page 70
... latter is the angle at the earth's centre subtended by the arc E A , or the latitude of the place . ( 120. ) Hence to a spectator at the north pole of the earth , the north pole of the heavens is in his zenith . As he travels southward ...
... latter is the angle at the earth's centre subtended by the arc E A , or the latitude of the place . ( 120. ) Hence to a spectator at the north pole of the earth , the north pole of the heavens is in his zenith . As he travels southward ...
Page 72
... latter is the azimuth of the star or other heavenly body ) , 3d , P S Z , an angle which , from the infrequency of any practical re- ference to it , has not acquired a name . * The following five astronomical magnitudes , then , occur ...
... latter is the azimuth of the star or other heavenly body ) , 3d , P S Z , an angle which , from the infrequency of any practical re- ference to it , has not acquired a name . * The following five astronomical magnitudes , then , occur ...
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angle angular appear apsides ascertained astronomical 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 Edition effect elements ellipse epoch equal equator equinoctial equinox error exact excentricity fixed globe heavens heliocentric horizon inclination 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 perturbations planet planetary pole portion position Post 8vo precession proper motions proportion recede recess reckoned refraction respect result revolution right ascension rotation round satellites Saturn seen sidereal sidereal day sidereal period situation solar sphere spherical stars station sun's suppose surface syzygies tangential force telescope tion Uranus variation velocity visible vols whole Woodcuts zenith
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Page 674 - A Dictionary of Science, Literature, and Art : Comprising the History, Description, and Scientific Principles of every Branch of Human Knowledge ; with the Derivation and Definition of all the Terms in General Use. Edited by WT BRANDE, FRSL and E.