Outlines of Astronomy |
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Page xi
... 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 xiii
... stations and retrogradations . The Sun their natural centre of motion . Inferior planets . Their phases , periods , etc. Dimensions and form of their orbits . Transits across the Sun. Superior planets . Their distances , periods , etc ...
... stations and retrogradations . The Sun their natural centre of motion . Inferior planets . Their phases , periods , etc. Dimensions and form of their orbits . Transits across the Sun. Superior planets . Their distances , periods , etc ...
Page 24
... STATION IN GENERAL . - · PARALLACTIC MOTIONS . THE STARS INSENSIBLE . - - TERRESTRIAL PARALLAX . - THAT OF FIRST STEP TOWARDS FORMING AN IDEA COPERNICAN VIEW OF THE - OF THE DISTANCE OF THE STARS . EARTH'S MOTION . - RELATIVE MOTION ...
... STATION IN GENERAL . - · PARALLACTIC MOTIONS . THE STARS INSENSIBLE . - - TERRESTRIAL PARALLAX . - THAT OF FIRST STEP TOWARDS FORMING AN IDEA COPERNICAN VIEW OF THE - OF THE DISTANCE OF THE STARS . EARTH'S MOTION . - RELATIVE MOTION ...
Page 25
... 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 28
... station for its centre . That this line is really a circle , we conclude , first , from the perfect apparent similar- ity of all its parts ; and , secondly , from the fact of all its parts appearing at the same distance from us , and ...
... station for its centre . That this line is really a circle , we conclude , first , from the perfect apparent similar- ity of all its parts ; and , secondly , from the fact of all its parts appearing at the same distance from us , and ...
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Common terms and phrases
altitude amount angle angular appear apsides ascertained astronomers 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 effect ellipse epoch equal equator equinoctial equinox error exact excentricity fixed globe gravity greater heavens heliocentric 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 perpendicular perturbations planet planetary pole portion position precession proper motions proportion recede recess reckoned refraction remarkable respect result revolution right ascension rotation round satellites Saturn seen sidereal sidereal day sidereal period situation solar sphere spherical stars station sun's suppose syzygies tangential force telescope tion Uranus variation velocity visible whole zenith