Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 стор. |
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Сторінка xii
... orbit an ellipse about the focus . Law of the angular velocity . Equable description of areas . Parallax of the Sun. Its distance and magnitude . Copernican explanation of the Sun's apparent motion . Parallelism of the Earth's axis ...
... orbit an ellipse about the focus . Law of the angular velocity . Equable description of areas . Parallax of the Sun. Its distance and magnitude . Copernican explanation of the Sun's apparent motion . Parallelism of the Earth's axis ...
Сторінка xiii
... orbit by gravity . Its law of diminution . Laws of elliptic motion . Orbit of the Earth round the Sun in accordance with these laws . Masses of the Earth and Sun compared . Density of the Sun. Force of gravity at its surface ...
... orbit by gravity . Its law of diminution . Laws of elliptic motion . Orbit of the Earth round the Sun in accordance with these laws . Masses of the Earth and Sun compared . Density of the Sun. Force of gravity at its surface ...
Сторінка 205
... ORBIT AN ELLIPSE ABOUT THE FOCUS . - LAW OF THE ANGULAR VELOCITY . - - - EQUABLE DESCRIPTION OF AREAS . -PARALLAX OF THE SUN . -ITS DISTANCE AND MAG- NITUDE . COPERNICAN EXPLANATION OF THE SUN'S APPARENT MOTION . PARALLELISM OF THE ...
... ORBIT AN ELLIPSE ABOUT THE FOCUS . - LAW OF THE ANGULAR VELOCITY . - - - EQUABLE DESCRIPTION OF AREAS . -PARALLAX OF THE SUN . -ITS DISTANCE AND MAG- NITUDE . COPERNICAN EXPLANATION OF THE SUN'S APPARENT MOTION . PARALLELISM OF THE ...
Сторінка 206
... orbit . ( 348. ) This variation of its angular velocity is accompanied with a corresponding change of its distance from us . The change of distance is recognized by a variation observed to take place in its apparent diameter , when ...
... orbit . ( 348. ) This variation of its angular velocity is accompanied with a corresponding change of its distance from us . The change of distance is recognized by a variation observed to take place in its apparent diameter , when ...
Сторінка 209
... orbit ) , and announced in the following terms : - Let a line be always supposed to connect the sun , supposed in motion , with the earth , supposed at rest ; then , as the sun moves along its ellipse , this line ( which is called in ...
... orbit ) , and announced in the following terms : - Let a line be always supposed to connect the sun , supposed in motion , with the earth , supposed at rest ; then , as the sun moves along its ellipse , this line ( which is called in ...
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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.