Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 стор. |
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Сторінка 275
... Jupiter , and Saturn - are remark- ably large and brilliant ; another , Mercury , is also visible to the naked eye as a large star , but , for a reason which will presently appear , is seldom conspicuous ; a sixth , Uranus , is barely ...
... Jupiter , and Saturn - are remark- ably large and brilliant ; another , Mercury , is also visible to the naked eye as a large star , but , for a reason which will presently appear , is seldom conspicuous ; a sixth , Uranus , is barely ...
Сторінка 279
... Jupiter , and Saturn , in Plate III . ) That their distances from us are great , much greater than that of the moon , and some of them even greater than that of the sun , we infer , 1st , from their being occulted by the moon , and 2dly ...
... Jupiter , and Saturn , in Plate III . ) That their distances from us are great , much greater than that of the moon , and some of them even greater than that of the sun , we infer , 1st , from their being occulted by the moon , and 2dly ...
Сторінка 291
... their parallax , we conclude to be the most distant from us , viz . Jupiter , Saturn , Uranus , and Neptune , never appear otherwise than round ; a sufficient proof , of - - itself , that we see them always in U 2 SUPERIOR PLANETS . 291.
... their parallax , we conclude to be the most distant from us , viz . Jupiter , Saturn , Uranus , and Neptune , never appear otherwise than round ; a sufficient proof , of - - itself , that we see them always in U 2 SUPERIOR PLANETS . 291.
Сторінка 292
... Jupiter , of Jupiter than of Saturn , of that planet than of Uranus , and of Uranus again than Neptune . The angular velocity with which a planet appears to re- trograde is easily ascertained by observing its apparent place in 292 ...
... Jupiter , of Jupiter than of Saturn , of that planet than of Uranus , and of Uranus again than Neptune . The angular velocity with which a planet appears to re- trograde is easily ascertained by observing its apparent place in 292 ...
Сторінка 294
... is as follows : - Mercury , Venus , Earth , Mars , the ultra - zodiacal planets , or , as they are sometimes also called , Asteroids , Jupiter , Saturn , - Uranus , and Neptune . Nevertheless , when we come 294 OUTLINES OF ASTRONOMY .
... is as follows : - Mercury , Venus , Earth , Mars , the ultra - zodiacal planets , or , as they are sometimes also called , Asteroids , Jupiter , Saturn , - Uranus , and Neptune . Nevertheless , when we come 294 OUTLINES OF ASTRONOMY .
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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.