The Planetary and Stellar Worlds: A Popular Exposition of the Great Discoveries and Theories of Modern Astronomy. In a Series of Ten LecturesOakley & Mason, 1868 - 320 páginas |
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Página 46
... circles ; having a common centre , these circles grew smaller and smaller as the stars approached nearer tc the centre of revolution , until finally one bright star was found , whose position was ever fixed . - 46 STRUCTURE OF THE UNIVERSE.
... circles ; having a common centre , these circles grew smaller and smaller as the stars approached nearer tc the centre of revolution , until finally one bright star was found , whose position was ever fixed . - 46 STRUCTURE OF THE UNIVERSE.
Página 54
... circle parallel with those described by the stars , in their diurnal revolution . His path was oblique to those circles , and while he participated in their diurnal motion , he was sweeping by his annual revolution round the heavens ...
... circle parallel with those described by the stars , in their diurnal revolution . His path was oblique to those circles , and while he participated in their diurnal motion , he was sweeping by his annual revolution round the heavens ...
Página 56
... circle of light , these two circles would have been seen to cross each other , and at their point of crossing , the sun would have been found . The diurnal circle was called the equa- tor , the sun's path the ecliptic , and the point of ...
... circle of light , these two circles would have been seen to cross each other , and at their point of crossing , the sun would have been found . The diurnal circle was called the equa- tor , the sun's path the ecliptic , and the point of ...
Página 57
... circle already imagined in the heavens to represent the sun's annual track among the stars passed obliquely across ... circle , but inclined , as has already been shown , to the diur- nal circles of the stars and to the equator . By ...
... circle already imagined in the heavens to represent the sun's annual track among the stars passed obliquely across ... circle , but inclined , as has already been shown , to the diur- nal circles of the stars and to the equator . By ...
Página 58
... circle , a brazen circle was at length de- vised , and fastened permanently to another brazen circle of equal size , under an angle , exactly equal to the inclination of the equator to the ecliptic . Circles , perpendicular to the ...
... circle , a brazen circle was at length de- vised , and fastened permanently to another brazen circle of equal size , under an angle , exactly equal to the inclination of the equator to the ecliptic . Circles , perpendicular to the ...
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Términos y frases comunes
absolute accomplished actually aphelion appear astonishing astronomer axis beautiful body bright celestial sphere centre centrifugal force circle cluster comet commenced computed constellations curve detected determined diameter direction discovered discovery double stars earth earth's orbit eccentricity eclipse efforts entire equal equator examination existence fact finally fixed stars force forever grand Halley's comet heavens Herschel inclined increase instrument investigation Jupiter Kepler law of gravitation laws of Kepler light limits magnitude matter mean distance mighty miles Milky millions mind moon moon's motion move movements mysterious nearly nebula night object observation observatory orbs parallax pass perihelion phenomena philosopher planet planetary planetary orbits position precisely present primitive problem proper motion reached remarkable retrograde motion revealed revolving round satellites Saturn seen slowly solar system sphere Struve sun and moon sun's sweeping tance telescope theory thousand tion truth Uranus vast velocity visible wonderful