Outlines of AstronomyLongman, green and Roberts, 1859 - 714 pages |
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Page xxiii
... 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 ...
Page xxiv
... star CHAPTER XVII . OF CLUSTERS OF STARS AND NEBULÆ . - Page 596 Of clustering groups of stars . Globular clusters . Their stability dyna- mically possible . List of the most remarkable . Classification of nebulæ and clusters . Their ...
... star CHAPTER XVII . OF CLUSTERS OF STARS AND NEBULÆ . - Page 596 Of clustering groups of stars . Globular clusters . Their stability dyna- mically possible . List of the most remarkable . Classification of nebulæ and clusters . Their ...
Page 11
... STARS INSENSIBLE . FIRST STEP TO- WARDS FORMING AN IDEA OF THE DISTANCE OF THE STARS . - — GEO- COPERNICAN VIEW OF THE EARTH'S MOTION . RELATIVE MOTION . MOTIONS PARTLY REAL , PARTLY APPARENT . CENTRIC ASTRONOMY , OR IDEAL REFERENCE OF ...
... STARS INSENSIBLE . FIRST STEP TO- WARDS FORMING AN IDEA OF THE DISTANCE OF THE STARS . - — GEO- COPERNICAN VIEW OF THE EARTH'S MOTION . RELATIVE MOTION . MOTIONS PARTLY REAL , PARTLY APPARENT . CENTRIC ASTRONOMY , OR IDEAL REFERENCE OF ...
Page 42
... 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 ...
Page 43
... 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 . ( 60. ) He will further observe , that the apparent relative situations of ...
... 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 . ( 60. ) He will further observe , that the apparent relative situations of ...
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Common terms and phrases
amount angle angular appear apsides ascertained astronomical attraction axis bright calculation celestial circle comet curve described diameter difference direction disc distance disturbed body disturbing force diurnal diurnal motion double stars earth ecliptic effect epoch equal equator equinoctial equinox error exact excentricity fixed globe gravity heavens heliocentric hemisphere horizon inclination increase 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 phænomena planet planetary pole portion position precession precisely proper motions proportion recede recess reckoned refraction remarkable render respect result revolution revolving right ascension ring rotation round satellites Saturn seen sidereal sidereal day situation solar sphere spherical stars station sun's suppose surface syzygies tangential force telescope tion Uranus variation velocity visible whole zenith