Outlines of astronomy |
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Page x
... position of the perturbative action on Uranus , by which the existence and situation of the disturbing planet became revealed to us , I have endeavoured , in pursuance of the general plan of this work , rather to exhibit a rational view ...
... position of the perturbative action on Uranus , by which the existence and situation of the disturbing planet became revealed to us , I have endeavoured , in pursuance of the general plan of this work , rather to exhibit a rational view ...
Page xix
... eye - piece . Variable prism micrometer . Of the position micrometer . Illumination of wires . Solar telescope and eye - piece . Helioscopy . Collimation of large reflectors 75 CHAPTER IV . OF GEOGRAPHY . Of the figure of a 2.
... eye - piece . Variable prism micrometer . Of the position micrometer . Illumination of wires . Solar telescope and eye - piece . Helioscopy . Collimation of large reflectors 75 CHAPTER IV . OF GEOGRAPHY . Of the figure of a 2.
Page xx
... positions of latitudes — of longitudes . Conduct of a trigonometrical survey . Of maps . Projec- tions of the sphere ... position of its axis on climate . Mean and true longitudes of the Sun. Equation of the center . Sidereal , tropical ...
... positions of latitudes — of longitudes . Conduct of a trigonometrical survey . Of maps . Projec- tions of the sphere ... position of its axis on climate . Mean and true longitudes of the Sun. Equation of the center . Sidereal , tropical ...
Page 29
... 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 ...
Page 40
... 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 ...
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Common terms and phrases
amount angle angular appear apsides ascertained astronomical attraction axis bright calculation celestial circle comet curve described diameter difference direction disc distance disturbed body disturbing force diurnal diurnal motion double stars earth ecliptic Edition effect epoch equal equator equinoctial equinox error exact excentricity fixed globe gravity heavens heliocentric hemisphere horizon inclination inequality instance instrument interval Julian period 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 phænomena planet planetary pole portion position precession proper motions proportion recede reckoned refraction remarkable respect result revolution revolving right ascension rotation round satellites Saturn seen sidereal sidereal day situation solar sphere spherical stars station sun's suppose surface syzygies tangential force telescope tion Uranus variation velocity visible vols whole zenith