Outlines of astronomy |
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Page xix
... station in general . Parallactic motions . Terrestrial parallax . That of the stars insensible . First step towards forming an idea of the distance of the stars . Copernican view of the Earth's motion . Relative motion . Motions partly ...
... station in general . Parallactic motions . Terrestrial parallax . That of the stars insensible . First step towards forming an idea of the distance of the stars . Copernican view of the Earth's motion . Relative motion . Motions partly ...
Page 11
... STATION PARALLACTIC MOTIONS . -TERRESTRIAL PARAL- IN GENERAL . LAX . - -- TWILIGHT . - THAT OF THE STARS INSENSIBLE . FIRST STEP TO- WARDS FORMING AN IDEA OF THE DISTANCE OF THE STARS . - - GEO- COPERNICAN VIEW OF THE EARTH'S MOTION ...
... STATION PARALLACTIC MOTIONS . -TERRESTRIAL PARAL- IN GENERAL . LAX . - -- TWILIGHT . - THAT OF THE STARS INSENSIBLE . FIRST STEP TO- WARDS FORMING AN IDEA OF THE DISTANCE OF THE STARS . - - GEO- COPERNICAN VIEW OF THE EARTH'S MOTION ...
Page 12
... station from which we see all the rest , and as the only one among them to which we can , in the first instance , refer for any determinate marks and measures by which to recognize their changes of situation , or with which to compare ...
... station from which we see all the rest , and as the only one among them to which we can , in the first instance , refer for any determinate marks and measures by which to recognize their changes of situation , or with which to compare ...
Page 13
... station from which we view them , with ourselves , and all objects which immediately surround us , be not itself in motion , unperceived by us ; and if so , of what nature that motion is . The apparent places of a number of objects ...
... station from which we view them , with ourselves , and all objects which immediately surround us , be not itself in motion , unperceived by us ; and if so , of what nature that motion is . The apparent places of a number of objects ...
Page 17
... station for its centre . That this line is really a circle , we conclude , first , from the perfect apparent ... stations at different elevations above various points of its surface , represented by a , g , m respectively . From each of ...
... station for its centre . That this line is really a circle , we conclude , first , from the perfect apparent ... stations at different elevations above various points of its surface , represented by a , g , m respectively . From each 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 Edition effect epoch equal equator equinoctial equinox error exact excentricity fixed globe gravity heavens heliocentric hemisphere horizon inclination inequality instance instrument interval Julian period 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 proper motions proportion recede reckoned refraction remarkable respect result revolution revolving right ascension 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 vols whole zenith