Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 стор. |
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Сторінка xii
... sphere . Measurement of heights by the barometer CHAPTER V. OF URANOGRAPHY . - - Page 125 Construction of celestial maps and globes by observations of right ascen- sion and declination . Celestial objects distinguished into fixed and ...
... sphere . Measurement of heights by the barometer CHAPTER V. OF URANOGRAPHY . - - Page 125 Construction of celestial maps and globes by observations of right ascen- sion and declination . Celestial objects distinguished into fixed and ...
Сторінка 3
... sphere ; he finds it , in comparison , a mere point ; so lost- even in the minute system to which it belongs — as to be in- visible and unsuspected from some of its principal and remoter members . - ( 3. ) There is hardly any thing ...
... sphere ; he finds it , in comparison , a mere point ; so lost- even in the minute system to which it belongs — as to be in- visible and unsuspected from some of its principal and remoter members . - ( 3. ) There is hardly any thing ...
Сторінка 16
... sphere or globe . ( 22. ) A diagram will elucidate this . Suppose the earth to be represented by the sphere LHNQ , whose centre is C , and let A , G , M be stations at different elevations above various points of its surface ...
... sphere or globe . ( 22. ) A diagram will elucidate this . Suppose the earth to be represented by the sphere LHNQ , whose centre is C , and let A , G , M be stations at different elevations above various points of its surface ...
Сторінка 17
... spherical surface compre- 2 M B F A k K G hended within this circle is the portion of the earth's surface visible to a ... sphere , the visible area , i . e . the spherical segment or slice NOPQ , increases ; 2dly , that the distance of ...
... spherical surface compre- 2 M B F A k K G hended within this circle is the portion of the earth's surface visible to a ... sphere , the visible area , i . e . the spherical segment or slice NOPQ , increases ; 2dly , that the distance of ...
Сторінка 18
... sphere at is the line ry . ( 23. ) This explains what is meant by the dip of the hor Mm , which is perpendicular to the general surface of sphere at m , is also the direction in which a plumb - line * w hang ; for it is an observed fact ...
... sphere at is the line ry . ( 23. ) This explains what is meant by the dip of the hor Mm , which is perpendicular to the general surface of sphere at m , is also the direction in which a plumb - line * w hang ; for it is an observed fact ...
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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.