Outlines of Astronomy |
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Page xiii
... Masses of the Earth and Sun compared . Density of the Sun. Force of gravity at its surface . Disturbing effect of ... Masses of the primaries concluded from the periods of their satellites . Maintenance of Kepler's laws in the secondary ...
... Masses of the Earth and Sun compared . Density of the Sun. Force of gravity at its surface . Disturbing effect of ... Masses of the primaries concluded from the periods of their satellites . Maintenance of Kepler's laws in the secondary ...
Page xv
... Masses of disturbing bodies deducible from the perturbations they produce . Mass of the Moon , and of Jupiter's satellites , how ascertained . Perturbations of Uranus resulting in the discovery of Neptune ...
... Masses of disturbing bodies deducible from the perturbations they produce . Mass of the Moon , and of Jupiter's satellites , how ascertained . Perturbations of Uranus resulting in the discovery of Neptune ...
Page 26
... mass beneath , to the ocean which flows around it , the air that rests upon it , and the clouds which float above it in the air . Such a motion , which should displace no terrestrial object from its relative situa- tion among others ...
... mass beneath , to the ocean which flows around it , the air that rests upon it , and the clouds which float above it in the air . Such a motion , which should displace no terrestrial object from its relative situa- tion among others ...
Page 31
... mass , as we consider an orange not the less round for the roughness on its rind . 2dly , That the appearance of a visible horizon , or sea - offing , is a consequence of the curvature of the surface , and does not arise from the ...
... mass , as we consider an orange not the less round for the roughness on its rind . 2dly , That the appearance of a visible horizon , or sea - offing , is a consequence of the curvature of the surface , and does not arise from the ...
Page 33
... arising from mountains , valleys , buildings , & c . to the roughnesses on the rind of an orange , compared with its general mass . The compari- son is quite free from exaggeration . The highest mountain 3 SIZE OF THE EARTH . 33.
... arising from mountains , valleys , buildings , & c . to the roughnesses on the rind of an orange , compared with its general mass . The compari- son is quite free from exaggeration . The highest mountain 3 SIZE OF THE EARTH . 33.
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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