Outlines of AstronomyLongman, Brown, Green, Longmans, 1851 - 661 стор. |
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Сторінка xiii
... comet . Comets with- out tails , or with more than one . Their extreme tenuity . Their probable structure . Motions conformable to the law of gravity . Actual dimensions of comets . Periodical return of several . Halley's comet . Other ...
... comet . Comets with- out tails , or with more than one . Their extreme tenuity . Their probable structure . Motions conformable to the law of gravity . Actual dimensions of comets . Periodical return of several . Halley's comet . Other ...
Сторінка xiv
... comet of 1843. Its probable identity with several older comets . Great interest at present attached to cometary astronomy , and its reasons . Remarks on cometary orbits in general PART II . OF THE PLANETARY PERTURBATIONS . · - Page 340 ...
... comet of 1843. Its probable identity with several older comets . Great interest at present attached to cometary astronomy , and its reasons . Remarks on cometary orbits in general PART II . OF THE PLANETARY PERTURBATIONS . · - Page 340 ...
Сторінка 340
... COMET . - BIELA'S . - FAYE'S . - LEXELL'S.- -DE VICO'S . - BRORSEN'S . · PETERS'S . - -GREAT COMET OF 1843. -ITS - - - GREAT PROBABLE IDENTITY WITH SEVERAL OLDER COMETS . INTEREST AT PRESENT ATTACHED TO COMETARY ASTRONOMY , AND ITS ...
... COMET . - BIELA'S . - FAYE'S . - LEXELL'S.- -DE VICO'S . - BRORSEN'S . · PETERS'S . - -GREAT COMET OF 1843. -ITS - - - GREAT PROBABLE IDENTITY WITH SEVERAL OLDER COMETS . INTEREST AT PRESENT ATTACHED TO COMETARY ASTRONOMY , AND ITS ...
Сторінка 341
... comet was ac- tually observed very near the sun . Several , however , stand on record as having been bright enough to be seen with the naked eye in the daytime , even at noon and in bright sun- shine . Such were the comets of 1402 ...
... comet was ac- tually observed very near the sun . Several , however , stand on record as having been bright enough to be seen with the naked eye in the daytime , even at noon and in bright sun- shine . Such were the comets of 1402 ...
Сторінка 342
... comet of 371 B. C. , that it occupied a third of the hemisphere , or 60 ° ; that of A. D. 1618 is stated to have been attended by a train no less than 104 ° in length . The comet of 1680 , the most celebrated of modern times , and on ...
... comet of 371 B. C. , that it occupied a third of the hemisphere , or 60 ° ; that of A. D. 1618 is stated to have been attended by a train no less than 104 ° in length . The comet of 1680 , the most celebrated of modern times , and on ...
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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.