Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 стор. |
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Сторінка 457
... syzygies , the latter at the quadra- tures . Hence at the syzygies the velocity will exceed that which corresponds to a circular orbit , and at quadratures will fall short of it . The true orbit will therefore be less curved or more ...
... syzygies , the latter at the quadra- tures . Hence at the syzygies the velocity will exceed that which corresponds to a circular orbit , and at quadratures will fall short of it . The true orbit will therefore be less curved or more ...
Сторінка 458
... syzygies and quadra- tures , and a maximum at the octants , accelerative in the quadrants EA and D B , and retarding in AD and BE . In the two former then the axis is in process of lengthening ; in the two latter , shortening . On the ...
... syzygies and quadra- tures , and a maximum at the octants , accelerative in the quadrants EA and D B , and retarding in AD and BE . In the two former then the axis is in process of lengthening ; in the two latter , shortening . On the ...
Сторінка 460
... syzygies , the moon is in perigee in her mo- mentary ellipse , the lower focus being nearer than the upper . 2dly , That in quadratures D , E , the moon is in apogee in her then momentary ellipse , the upper focus being then nearer H2 ...
... syzygies , the moon is in perigee in her mo- mentary ellipse , the lower focus being nearer than the upper . 2dly , That in quadratures D , E , the moon is in apogee in her then momentary ellipse , the upper focus being then nearer H2 ...
Сторінка 462
... syzygies and quadratures , as well as the neutral points of the normal force , instead of being points fixed in longitude on the orbit of the moon , will advance on that orbit with a uniform angular motion equal to the angular motion of ...
... syzygies and quadratures , as well as the neutral points of the normal force , instead of being points fixed in longitude on the orbit of the moon , will advance on that orbit with a uniform angular motion equal to the angular motion of ...
Сторінка 465
... syzygies , or , which comes to the same thing , the neutral points of either force overtake it in suc- cession , and each , as it comes up to it , gives rise to a cusp in the corresponding focus curve . The angles between the suc ...
... syzygies , or , which comes to the same thing , the neutral points of either force overtake it in suc- cession , and each , as it comes up to it , gives rise to a cusp in the corresponding focus curve . The angles between the suc ...
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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.