Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 стор. |
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Сторінка 28
... position of the strata is the same in all directions around A , the visual ray will not be made to deviate laterally , but will remain constantly in the same vertical plane , S A C ' , passing through the eye , the object , and the ...
... position of the strata is the same in all directions around A , the visual ray will not be made to deviate laterally , but will remain constantly in the same vertical plane , S A C ' , passing through the eye , the object , and the ...
Сторінка 39
... position from which it set out when the spectator began his observations , —it is manifest that every thing will then be in precisely the same relative position as at the outset : all the heavenly bodies will appear to occupy the same ...
... position from which it set out when the spectator began his observations , —it is manifest that every thing will then be in precisely the same relative position as at the outset : all the heavenly bodies will appear to occupy the same ...
Сторінка 42
... position very nicely to some fixed mark , it may easily be supposed at rest , and be , itself , mistaken for the common centre about which all the others in that region describe their circles ; or it may be known by its configuration ...
... position very nicely to some fixed mark , it may easily be supposed at rest , and be , itself , mistaken for the common centre about which all the others in that region describe their circles ; or it may be known by its configuration ...
Сторінка 45
... position with respect to them in the concave of the heavens among the stars ; but this point itself will become gradually depressed with respect to the spectator's horizon . The axis , in short , about which the diurnal motion is ...
... position with respect to them in the concave of the heavens among the stars ; but this point itself will become gradually depressed with respect to the spectator's horizon . The axis , in short , about which the diurnal motion is ...
Сторінка 48
... position of every object is referred by us to the surface of an imaginary sphere of an indefinite radius , having ... positions with respect to the line in whi h we move , A B , which serves as an axis or line of reference , and assume ...
... position of every object is referred by us to the surface of an imaginary sphere of an indefinite radius , having ... positions with respect to the line in whi h we move , A B , which serves as an axis or line of reference , and assume ...
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Outlines of Astronomy John Frederick William Herschel,Sir John Frederick William Herschel Повний перегляд - 1851 |
Загальні терміни та фрази
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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Сторінка 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.