Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 стор. |
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Сторінка 10
... CENTRE AS A COMMON CONVENTIONAL STATION . * ( 11. ) THE magnitudes , distances , arrangement , and motions of the great bodies which make up the visible universe , their constitution and physical condition , so far as they can be known ...
... CENTRE AS A COMMON CONVENTIONAL STATION . * ( 11. ) THE magnitudes , distances , arrangement , and motions of the great bodies which make up the visible universe , their constitution and physical condition , so far as they can be known ...
Сторінка 16
... centre . That this line is really a circle , we conclude , first , from the perfect apparent similarity of all its parts ; and , secondly , from the fact of all its parts appearing at the same distance from us , and that , evidently , a ...
... centre . That this line is really a circle , we conclude , first , from the perfect apparent similarity of all its parts ; and , secondly , from the fact of all its parts appearing at the same distance from us , and that , evidently , a ...
Сторінка 21
... centre in the figure C D b B , we know Db , the length of the arch C of the circle between D and b , — viz . half the measured interval , and b B , the excess of its secant above its radius which is the height of B , data which , by the ...
... centre in the figure C D b B , we know Db , the length of the arch C of the circle between D and b , — viz . half the measured interval , and b B , the excess of its secant above its radius which is the height of B , data which , by the ...
Сторінка 28
... centre . ( 40. ) The effect of the air's refraction , then , is to raise all the heavenly bodies higher above the horizon in appearance than they are in reality . Any such body , situated actually in the true horizon , will appear above ...
... centre . ( 40. ) The effect of the air's refraction , then , is to raise all the heavenly bodies higher above the horizon in appearance than they are in reality . Any such body , situated actually in the true horizon , will appear above ...
Сторінка 35
... centre , and its surface at some vast indeterminate distance . Perhaps he might judge those which appear to him large and bright , to be nearer to him than the smaller and less brilliant ; but , independent of other means of judging ...
... centre , and its surface at some vast indeterminate distance . Perhaps he might judge those which appear to him large and bright , to be nearer to him than the smaller and less brilliant ; but , independent of other means of judging ...
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Outlines of Astronomy John Frederick William Herschel,Sir John Frederick William Herschel Повний перегляд - 1851 |
Загальні терміни та фрази
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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Сторінка 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.