Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 стор. |
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Сторінка 2
... considerable size , become en- larged in his imagination into vast globes , the one ap- proaching in magnitude to the earth itself , the other im- mensely surpassing it . The planets , which appear only as stars somewhat brighter than ...
... considerable size , become en- larged in his imagination into vast globes , the one ap- proaching in magnitude to the earth itself , the other im- mensely surpassing it . The planets , which appear only as stars somewhat brighter than ...
Сторінка 15
... considerable with respect to ourselves and to that small portion of it which we can see at a single view , to allow of our forming any judgment of the form of the whole , from that of a part so dis- figured . But with the surface of the ...
... considerable with respect to ourselves and to that small portion of it which we can see at a single view , to allow of our forming any judgment of the form of the whole , from that of a part so dis- figured . But with the surface of the ...
Сторінка 23
... considerable elevation above the surface of the earth , either in a balloon , or on mountains , we are made aware , by many uneasy sensations , of an insufficient supply of air . The barometer , an instrument which informs us of the ...
... considerable elevation above the surface of the earth , either in a balloon , or on mountains , we are made aware , by many uneasy sensations , of an insufficient supply of air . The barometer , an instrument which informs us of the ...
Сторінка 26
... considerable permanent depressions of the contours of these strata , below their general or spherical level , subsist . But these are points of consideration rather for the meteoro- logist than the astronomer . It must be observed ...
... considerable permanent depressions of the contours of these strata , below their general or spherical level , subsist . But these are points of consideration rather for the meteoro- logist than the astronomer . It must be observed ...
Сторінка 33
... , than what would be produced by the whole atmosphere , but still often of very appretiable , and even considerable , amount . This refraction D between terrestrial stations is termed terrestrial refraction , to distinguish TWILIGHT . 33.
... , than what would be produced by the whole atmosphere , but still often of very appretiable , and even considerable , amount . This refraction D between terrestrial stations is termed terrestrial refraction , to distinguish TWILIGHT . 33.
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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.