Outlines of astronomy |
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Page xxiv
... remarkable . Classification of nebulæ and clusters . Their distribution over the heavens . Irregular clusters . Resolvability of nebula . Theory of the formation of clus- ters by nebulous subsidence . Of elliptic nebulæ . That of Andro ...
... remarkable . Classification of nebulæ and clusters . Their distribution over the heavens . Irregular clusters . Resolvability of nebula . Theory of the formation of clus- ters by nebulous subsidence . Of elliptic nebulæ . That of Andro ...
Page 179
... remarkable points in the country , by whose connection its whole surface may be covered , as it were , with a network of triangles . Now , it is evident that the angles of the triangle A , B , C being observed , and one of its sides ...
... remarkable points in the country , by whose connection its whole surface may be covered , as it were , with a network of triangles . Now , it is evident that the angles of the triangle A , B , C being observed , and one of its sides ...
Page 193
... remarkable , that its alteration of situation with respect to such bright stars as may happen . to be near it may be noticed any fine night in a few hours ; and if noticed on two successive nights , cannot fail to strike the most ...
... remarkable , that its alteration of situation with respect to such bright stars as may happen . to be near it may be noticed any fine night in a few hours ; and if noticed on two successive nights , cannot fail to strike the most ...
Page 195
... remarkable stars , as a Leonis , B Scorpii , & c . & c . , by letters of the Greek alphabet attached • This disregard is neither supercilious nor causeless . The constellations seem to have been almost purposely named and delineated to ...
... remarkable stars , as a Leonis , B Scorpii , & c . & c . , by letters of the Greek alphabet attached • This disregard is neither supercilious nor causeless . The constellations seem to have been almost purposely named and delineated to ...
Page 196
... remarkable belt has maintained , from the earliest ages , the same relative situation among the stars and , when examined through powerful telescopes , is found ( wonderful to relate ! ) to consist entirely of stars scattered by ...
... remarkable belt has maintained , from the earliest ages , the same relative situation among the stars and , when examined through powerful telescopes , is found ( wonderful to relate ! ) to consist entirely of stars scattered by ...
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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