History of Astronomy |
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... positions with those of Timocharis and Aristillus he found nostarsthat had appeared or disappeared in the interval of150 years; buthe found thatall the stars seemed to have changedtheirplaces with reference to thatpoint in the heavens ...
... positions with those of Timocharis and Aristillus he found nostarsthat had appeared or disappeared in the interval of150 years; buthe found thatall the stars seemed to have changedtheirplaces with reference to thatpoint in the heavens ...
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... position oftheline of apses,[4] besides the inclinationand position ofthe plane of the planet's orbit.The only object ever aimed at in thosedays was to preparetables for predicting the placesof the planets. It was nota mechanical ...
... position oftheline of apses,[4] besides the inclinationand position ofthe plane of the planet's orbit.The only object ever aimed at in thosedays was to preparetables for predicting the placesof the planets. It was nota mechanical ...
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... position of Copernicuscanbe realised.He noticed thatNicetas and others hadascribed the apparent diurnal rotationof the heavens toareal daily rotation of the earth aboutits axis, in the oppositedirection tothe apparent motion ofthe stars ...
... position of Copernicuscanbe realised.He noticed thatNicetas and others hadascribed the apparent diurnal rotationof the heavens toareal daily rotation of the earth aboutits axis, in the oppositedirection tothe apparent motion ofthe stars ...
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... position—a testwhich failed completely with the rough means of observationthen available.The radical defect ofallsolar systems previous to thetimeofKepler (1609 A.D.) wasthe slavish yielding to Plato's dictum demanding uniform ...
... position—a testwhich failed completely with the rough means of observationthen available.The radical defect ofallsolar systems previous to thetimeofKepler (1609 A.D.) wasthe slavish yielding to Plato's dictum demanding uniform ...
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Airy allthe andthat andthe asthe Astronomer Royal Astronomia Nova astronomical units atmosphere atthe attraction axis bright bythe calculations catalogue centre century Chaldæans Chinese comet confirmed Copernicus detected diameter discovered discovery distance earth eclipse epicycles equatoreal excentric explain fixed stars FOOTNOTES Frauenhofer fromthe Galileo Greenwich Halley havebeen heavenly bodies heavens heliometer Herschel Hipparchus Huggins hydrogen hypotheses inequality instruments inthe isthe John Herschel Jupiter Jupiter's Kepler lawof Lick Observatory light lines lunar Mars mathematical mean motion measured Mercury meteor miles moon moon's nebula Newton ofthese onthe orbit parallax perihelion period photographic physical planet planetary position predicted proper motion Ptolemy records reflector refractor retrograde retrograde motion revolve rotation round satellites Saturn seems solar system spectra spectroscope spectrum spots stellar sun's sunspot supposed surface telescope terrestrial thatthe theearth themoon theory thesame thesolar thesun tobe tothe Tycho Brahe Uranus velocity Venus Verrier William Herschel withthe zenith