History of Astronomy |
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Page 51
... satellites . As Delambre and Grant have said , this fiction only retarded the progress of pure science . It had no sort of relation to the more modern , but equally misleading , " nebular hypothesis . " While many were talking and ...
... satellites . As Delambre and Grant have said , this fiction only retarded the progress of pure science . It had no sort of relation to the more modern , but equally misleading , " nebular hypothesis . " While many were talking and ...
Page 56
... satellites are chiefly controlled by the central body about which they revolve , the new law must involve irregularities , due to their mutual action — such , in fact , as Horrocks had indicated . He determined to put this to a test in ...
... satellites are chiefly controlled by the central body about which they revolve , the new law must involve irregularities , due to their mutual action — such , in fact , as Horrocks had indicated . He determined to put this to a test in ...
Page 57
... of calculating the precession of the equinoxes , already referred to , is as beautiful as any- thing in the Principia . He had already proved the regression of the nodes of a satellite moving in an E 2 THE DYNAMICAL PERIOD 57.
... of calculating the precession of the equinoxes , already referred to , is as beautiful as any- thing in the Principia . He had already proved the regression of the nodes of a satellite moving in an E 2 THE DYNAMICAL PERIOD 57.
Page 58
George Forbes. regression of the nodes of a satellite moving in an orbit inclined to the ecliptic . He now said that the nodes of a ring of satellites revolving round the earth's equator would consequently all regress . And if joined ...
George Forbes. regression of the nodes of a satellite moving in an orbit inclined to the ecliptic . He now said that the nodes of a ring of satellites revolving round the earth's equator would consequently all regress . And if joined ...
Page 64
... , which for two hundred years have been establishing the universality of Newton's law . The lunar and R. A. S. Monthly Notices , 1907-8 . planetary theories , the beautiful theory of Jupiter's satellites , 64 THE DYNAMICAL PERIOD NEWTON'S.
... , which for two hundred years have been establishing the universality of Newton's law . The lunar and R. A. S. Monthly Notices , 1907-8 . planetary theories , the beautiful theory of Jupiter's satellites , 64 THE DYNAMICAL PERIOD NEWTON'S.
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accurate observations Airy astro Astronomer Royal Astronomia Nova astronomical units attraction axis bright calculations Cape Cassini catalogue centre century comet compute Copernicus diameter discovered discovery earth eclipse epicycles equatoreal error excentric explain fact fixed stars Galileo Greenwich Halley heavenly bodies heavens heliometer Hipparchus Huggins hydrogen hypothesis instruments Johann Kepler John Herschel Jupiter Jupiter's Kepler Laplace Lick Observatory light line of apses line of sight lunar Mars mathematical mean distance mean motion measured Mercury meteor method miles a second moon moon's nebulæ Newton Observatory orbit parallax perihelion period photographic physical planet planetary pole position predicted proper motion proved Ptolemy R. S. Phil records refractor retrograde retrograde motion revolution revolve round ring rotation round the sun satellites seems showed Sirius solar system spectra spectroscope spectrum spots stellar sun-spots sun's surface supposed tables telescope theory tion Trans Tycho Brahe Uranus velocity Venus Verrier zenith