Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 sider |
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Side xiv
... advance and recess . Cases of an exterior planet disturbed by an interior . The reverse case . In every case the node of the dis- turbed orbit recedes on the plane of the disturbing on an average . Combined effect of many such ...
... advance and recess . Cases of an exterior planet disturbed by an interior . The reverse case . In every case the node of the dis- turbed orbit recedes on the plane of the disturbing on an average . Combined effect of many such ...
Side 48
... advance in any direction , A B , carry- D B A 19 ing this imaginary sphere along with us , the visual rays A P , AQ , by which objects are referred to its surface ( at C , for instance ) , shift their positions with respect to the line ...
... advance in any direction , A B , carry- D B A 19 ing this imaginary sphere along with us , the visual rays A P , AQ , by which objects are referred to its surface ( at C , for instance ) , shift their positions with respect to the line ...
Side 49
... advance with us and gain upon the other , or leave it behind it , is the farthest from us . ( 70. ) The apparent angular motion of an object , arising from a change of our point of view , is called in general paral- lax , and it is ...
... advance with us and gain upon the other , or leave it behind it , is the farthest from us . ( 70. ) The apparent angular motion of an object , arising from a change of our point of view , is called in general paral- lax , and it is ...
Side 132
... advance we find the tangent ( which answers to our horizon ) to have shifted its position with respect to a fixed direction in space , ( such as the axis of the heavens , or the line joining the earth's centre and some given star ...
... advance we find the tangent ( which answers to our horizon ) to have shifted its position with respect to a fixed direction in space , ( such as the axis of the heavens , or the line joining the earth's centre and some given star ...
Side 141
... advance with our subject , we shall find the same simple principle branch- ing out into a whole train of singular and important con- sequences , some obvious enough , others which at first seem entirely unconnected with it , and which ...
... advance with our subject , we shall find the same simple principle branch- ing out into a whole train of singular and important con- sequences , some obvious enough , others which at first seem entirely unconnected with it , and which ...
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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.