Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 стор. |
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Сторінка 183
... history , every point in the area of that zone of the hea- vens within which they are circumscribed . The apparent complication of their movements arises ( that of the moon ex- cepted ) from our viewing them from a station which is ...
... history , every point in the area of that zone of the hea- vens within which they are circumscribed . The apparent complication of their movements arises ( that of the moon ex- cepted ) from our viewing them from a station which is ...
Сторінка 190
... which the heavens must present at very remote periods of history . The pole is nothing more than the vanishing point of the earth's axis . As this point , then , has such a motion as we have described , it 190 OUTLINES OF ASTRONOMY .
... which the heavens must present at very remote periods of history . The pole is nothing more than the vanishing point of the earth's axis . As this point , then , has such a motion as we have described , it 190 OUTLINES OF ASTRONOMY .
Сторінка 296
... history carried back , by the aid of calculations founded on these data , for many centuries , we learn to regard the laws of Kepler as only first approximations to the much more complicated ones which actually prevail ; and that to ...
... history carried back , by the aid of calculations founded on these data , for many centuries , we learn to regard the laws of Kepler as only first approximations to the much more complicated ones which actually prevail ; and that to ...
Сторінка 303
... history , to determine the circumstances of its motion in the orbit so precisely fixed . Now , for this purpose , all that is needed is to know the moment of time when it is either at the perihelion , or at any other precisely ...
... history , to determine the circumstances of its motion in the orbit so precisely fixed . Now , for this purpose , all that is needed is to know the moment of time when it is either at the perihelion , or at any other precisely ...
Сторінка 309
... history of this noble discovery , we are ready to exclaim with Schiller- " Mit dem Genius steht die Natur in ewigem Bunde , Was der Eine verspricht leistet die Andre gewiss . " Professor Challis , of the Cambridge Observatory ...
... history of this noble discovery , we are ready to exclaim with Schiller- " Mit dem Genius steht die Natur in ewigem Bunde , Was der Eine verspricht leistet die Andre gewiss . " Professor Challis , of the Cambridge Observatory ...
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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.