Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 стор. |
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Сторінка xv
... stars . Their classification by magnitudes . Photometric scale of magnitudes . Conventional or vulgar scale . Photometric comparison of stars . Distribution of stars over the heavens . Of the Milky Way or galaxy . Its supposed form that ...
... stars . Their classification by magnitudes . Photometric scale of magnitudes . Conventional or vulgar scale . Photometric comparison of stars . Distribution of stars over the heavens . Of the Milky Way or galaxy . Its supposed form that ...
Сторінка xvi
... 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 of Orion - of Argo - of ...
... 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 of Orion - of Argo - of ...
Сторінка 10
... STARS INSENSIBLE . FIRST STEP TO- WARDS FORMING AN IDEA OF THE DISTANCE OF THE STARS . LAX . - COPERNICAN VIEW OF THE EARTH'S MOTION . - T RELATIVE - GEO- MOTION . MOTIONS PARTLY REAL , PARTLY APPARENT . CENTRIC ASTRONOMY , OR IDEAL ...
... STARS INSENSIBLE . FIRST STEP TO- WARDS FORMING AN IDEA OF THE DISTANCE OF THE STARS . LAX . - COPERNICAN VIEW OF THE EARTH'S MOTION . - T RELATIVE - GEO- MOTION . MOTIONS PARTLY REAL , PARTLY APPARENT . CENTRIC ASTRONOMY , OR IDEAL ...
Сторінка 41
... stars of various mag- nitudes , of which the brightest only will first catch his atten- tion in the twilight ; and more and more will appear as the darkness increases , till the whole sky is over - spangled with them . When he has ...
... stars of various mag- nitudes , of which the brightest only will first catch his atten- tion in the twilight ; and more and more will appear as the darkness increases , till the whole sky is over - spangled with them . When he has ...
Сторінка 42
... stars which , in their diurnal motion , just graze the horizon at its north point , or only dip below it for a ... stars , called by astronomers the GREAT BEAR . to ( 60. ) He will further observe , that the apparent relative situations ...
... stars which , in their diurnal motion , just graze the horizon at its north point , or only dip below it for a ... stars , called by astronomers the GREAT BEAR . to ( 60. ) He will further observe , that the apparent relative situations ...
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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.