Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 стор. |
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Сторінка xi
... horizon and its dip . The atmosphere . Refraction . Twi- light . Appearances resulting from diurnal motion . From change of station in general . Parallactic motions . Terrestrial parallax . That of the stars insensible . First step ...
... horizon and its dip . The atmosphere . Refraction . Twi- light . Appearances resulting from diurnal motion . From change of station in general . Parallactic motions . Terrestrial parallax . That of the stars insensible . First step ...
Сторінка 10
... HORIZON AND ITS DIP . THE AT- TWILIGHT . MOSPHERE . - - REFRACTION . - - APPEARANCES RE- SULTING FROM DIURNAL MOTION FROM CHANGE OF STATION IN GENERAL . PARALLACTIC MOTIONS . - TERRESTRIAL PARAL- THAT OF THE STARS INSENSIBLE . FIRST ...
... HORIZON AND ITS DIP . THE AT- TWILIGHT . MOSPHERE . - - REFRACTION . - - APPEARANCES RE- SULTING FROM DIURNAL MOTION FROM CHANGE OF STATION IN GENERAL . PARALLACTIC MOTIONS . - TERRESTRIAL PARAL- THAT OF THE STARS INSENSIBLE . FIRST ...
Сторінка 15
... horizon ; and , besides , the moon and stars also set and rise again in all points of the visible horizon . The conclusion is plain : the earth cannot extend indefinitely in depth downwards , nor indefinitely in surface laterally ; it ...
... horizon ; and , besides , the moon and stars also set and rise again in all points of the visible horizon . The conclusion is plain : the earth cannot extend indefinitely in depth downwards , nor indefinitely in surface laterally ; it ...
Сторінка 17
... horizon ; and as this tangent sweeps round M , and comes successively into the positions MOo , MP p , M Q q , the ... horizon or boundary of our view from the eye , Opigw , to terminate . с viz . the line MN , increases ; and , THE ...
... horizon ; and as this tangent sweeps round M , and comes successively into the positions MOo , MP p , M Q q , the ... horizon or boundary of our view from the eye , Opigw , to terminate . с viz . the line MN , increases ; and , THE ...
Сторінка 18
... horizon , & c . corresponding to each , a glance at whic explain our meaning ; or , limiting ourselves to the larg more distinct , MNOPQ , let the reader imagine 7 MQ7 to be the two legs of a ruler jointed at M , an extended by the ...
... horizon , & c . corresponding to each , a glance at whic explain our meaning ; or , limiting ourselves to the larg more distinct , MNOPQ , let the reader imagine 7 MQ7 to be the two legs of a ruler jointed at M , an extended by the ...
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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.