Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 sider |
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Side vii
... 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 ...
Side xv
... epoch . Inequalities incident on the epoch affecting the mean motion . Interpretation of the constant part of these ine- qualities . 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 ine- qualities . Annual equation of the Moon . Her secular acceleration . Lunar inequalities due to the action of Venus ...
Side 154
... epoch in- dependent of local situation , and local time , which reckons , at each particular place , from an epoch , or initial instant , deter- mined by local convenience . Of time reckoned in the former , or abstract manner , we have ...
... epoch in- dependent of local situation , and local time , which reckons , at each particular place , from an epoch , or initial instant , deter- mined by local convenience . Of time reckoned in the former , or abstract manner , we have ...
Side 161
... epoch have also been used in Germany for ascertaining the longitudes of several stations , and with very satisfactory results . M ( 266. ) Another species of natural signal , visible DETERMINATION OF LONGITUDES . 161.
... epoch have also been used in Germany for ascertaining the longitudes of several stations , and with very satisfactory results . M ( 266. ) Another species of natural signal , visible DETERMINATION OF LONGITUDES . 161.
Side 184
... epoch at which we possess observations , we find evidences of a small change , which theory accounts for , and whose nature will be hereafter explained ; but that change is so excessively slow , that for a great many successive years ...
... epoch at which we possess observations , we find evidences of a small change , which theory accounts for , and whose nature will be hereafter explained ; but that change is so excessively slow , that for a great many successive years ...
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Outlines of Astronomy John Frederick William Herschel,Sir John Frederick William Herschel Uten tilgangsbegrensning - 1851 |
Vanlige uttrykk og setninger
angle angular appear apsides ascertained astronomical 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 Edition effect elements ellipse epoch equal equator equinoctial equinox error exact excentricity fixed globe heavens heliocentric horizon inclination 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 planet planetary pole portion position Post 8vo precession proper motions proportion recede recess reckoned refraction respect result revolution right ascension rotation round satellites Saturn seen sidereal sidereal day sidereal period situation solar sphere spherical stars station sun's suppose surface syzygies tangential force telescope tion Uranus variation velocity visible vols whole Woodcuts zenith
Populære avsnitt
Side 674 - A Dictionary of Science, Literature, and Art : Comprising the History, Description, and Scientific Principles of every Branch of Human Knowledge ; with the Derivation and Definition of all the Terms in General Use. Edited by WT BRANDE, FRSL and E.