Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 pages |
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Page xii
... Variation of gravity on its surface . Statical and dynamical measures of gravity . The pendulum . Gravity to a spheroid . Other effects of the Earth's rotation . Trade winds . Determination of geographical positions of latitudes — of ...
... Variation of gravity on its surface . Statical and dynamical measures of gravity . The pendulum . Gravity to a spheroid . Other effects of the Earth's rotation . Trade winds . Determination of geographical positions of latitudes — of ...
Page xiv
... Variation of elements in general . Distinction between periodic and secular variations . Geometrical expression of tangential and normal forces . Variation of the Major Axis produced only by the tangential force . Lagrange's theorem of ...
... Variation of elements in general . Distinction between periodic and secular variations . Geometrical expression of tangential and normal forces . Variation of the Major Axis produced only by the tangential force . Lagrange's theorem of ...
Page xv
... variations of the elements of both planets . Long inequality of the Earth and Venus . Variation of the epoch . Inequalities incident on the epoch affecting the mean motion . Interpretation of the constant part of these ine- qualities ...
... variations of the elements of both planets . Long inequality of the Earth and Venus . Variation of the epoch . Inequalities incident on the epoch affecting the mean motion . Interpretation of the constant part of these ine- qualities ...
Page 30
... variations . ( 43. ) 1st . In the zenith there is no refraction . A celestial object , situated vertically over head ... variation , owing to these two causes , from its mean amount ( at temp . 55o , pressure 30 inches ) , are about one ...
... variations . ( 43. ) 1st . In the zenith there is no refraction . A celestial object , situated vertically over head ... variation , owing to these two causes , from its mean amount ( at temp . 55o , pressure 30 inches ) , are about one ...
Page 63
... variation , -so slow however , as not to affect , perceptibly , the interval , of any two of its successive returns to the meridian . This interval is called a sidereal day , and is divided into 24 sidereal hours , and these again into ...
... variation , -so slow however , as not to affect , perceptibly , the interval , of any two of its successive returns to the meridian . This interval is called a sidereal day , and is divided into 24 sidereal hours , and these again into ...
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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
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Page 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.