Outlines of Astronomy |
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Page ix
... epoch , the principal among them being the annual and secular equations of the moon , and that very delicate and obscure part of the perturbational theory ( so little satisfactory in the manner in which it emerges from the analytical ...
... epoch , the principal among them being the annual and secular equations of the moon , and that very delicate and obscure part of the perturbational theory ( so little satisfactory in the manner in which it emerges from the analytical ...
Page xv
... epoch . Inequalities incident on the epoch affecting the mean motion . Interpretation of the constant part of these inequalities . Annual equation of the Moon . Her secular acceleration . Lunar inequalities due to the action of Venus ...
... epoch . Inequalities incident on the epoch affecting the mean motion . Interpretation of the constant part of these inequalities . Annual equation of the Moon . Her secular acceleration . Lunar inequalities due to the action of Venus ...
Page 142
... epoch independent of local situation , and local time , which reckons , at each particular place , from an epoch , or initial instant , determined by local convenience . Of time reckoned in the former , or abstract manner , we have an ...
... epoch independent of local situation , and local time , which reckons , at each particular place , from an epoch , or initial instant , determined by local convenience . Of time reckoned in the former , or abstract manner , we have an ...
Page 143
... epoch of his sidereal time ; which is , therefore , entirely a local reckoning . It gives no information to say that an event happened at such and such an hour of sidereal time , unless we particularize the station to which the sidereal ...
... epoch of his sidereal time ; which is , therefore , entirely a local reckoning . It gives no information to say that an event happened at such and such an hour of sidereal time , unless we particularize the station to which the sidereal ...
Page 148
... . Those of the same epoch have also been used in Germany for ascertaining the longitudes of several stations , and with very satisfactory results . ( 266. ) Another species of natural signal , visible 148 OUTLINES OF ASTRONOMY .
... . Those of the same epoch have also been used in Germany for ascertaining the longitudes of several stations , and with very satisfactory results . ( 266. ) Another species of natural signal , visible 148 OUTLINES OF ASTRONOMY .
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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