Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 стор. |
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Сторінка xi
... stars insensible . First step towards forming an idea of the distance of the stars . Copernican view of the Earth's ... Double refracting eye - piece . Variable prism micrometer . Of the position micrometer 74 CHAPTER IV OF GEOGRAPHY ...
... stars insensible . First step towards forming an idea of the distance of the stars . Copernican view of the Earth's ... Double refracting eye - piece . Variable prism micrometer . Of the position micrometer 74 CHAPTER IV OF GEOGRAPHY ...
Сторінка xv
... stars . Their classification by magnitudes . Photometric scale of magnitudes . Conventional or vulgar scale ... Double stars . Their classification . Specimens of each class . Binary systems . Revolution round each other . Describe ...
... stars . Their classification by magnitudes . Photometric scale of magnitudes . Conventional or vulgar scale ... Double stars . Their classification . Specimens of each class . Binary systems . Revolution round each other . Describe ...
Сторінка xvi
... Double nebulæ . Nebulous stars . Connection of nebula with double stars . Insulated nebula of forms not wholly irregular . Of amorphous nebulæ . Their law of distribution marks them as outliers of the galaxy . Nebula and nebulous group ...
... Double nebulæ . Nebulous stars . Connection of nebula with double stars . Insulated nebula of forms not wholly irregular . Of amorphous nebulæ . Their law of distribution marks them as outliers of the galaxy . Nebula and nebulous group ...
Сторінка 72
... star , sun , or other celestial object . In this triangle occur , 1st , P Z , which being the comple- ment of P H ... double stars and other objects by the aid of the position micrometer , this angle is sometimes required to be known ...
... star , sun , or other celestial object . In this triangle occur , 1st , P Z , which being the comple- ment of P H ... double stars and other objects by the aid of the position micrometer , this angle is sometimes required to be known ...
Сторінка 90
... star in the heavens , he is furnished with such a regularly periodical natural event as we allude to . Accordingly , it is to the transits of the brightest and most conveniently situated fixed stars ... double , forming what is called in ...
... star in the heavens , he is furnished with such a regularly periodical natural event as we allude to . Accordingly , it is to the transits of the brightest and most conveniently situated fixed stars ... double , forming what 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.