History of Astronomy |
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... records. So Hipparchus, about 150B.C., and Ptolemy alittlelater, were abletousethe observations of Chaldĉan astrologers, as well asthoseof Alexandrian astronomers, and to make some discoveries which havehelped theprogressof astronomy in ...
... records. So Hipparchus, about 150B.C., and Ptolemy alittlelater, were abletousethe observations of Chaldĉan astrologers, as well asthoseof Alexandrian astronomers, and to make some discoveries which havehelped theprogressof astronomy in ...
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... records to 617 A.D. [4] The theoretical viewsfounded on Newton's great lawof universal gravitation led to the conclusion that the inclination of the earth's equator to the plane ofher orbit (the obliquityof the ecliptic) has been ...
... records to 617 A.D. [4] The theoretical viewsfounded on Newton's great lawof universal gravitation led to the conclusion that the inclination of the earth's equator to the plane ofher orbit (the obliquityof the ecliptic) has been ...
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... records have not been availableto later scholars; but thefact remains that—althoughat long intervals observations were madeof eclipses,comets, and falling stars, andof the position of the solstices, and ofthe obliquity of the ecliptic ...
... records have not been availableto later scholars; but thefact remains that—althoughat long intervals observations were madeof eclipses,comets, and falling stars, andof the position of the solstices, and ofthe obliquity of the ecliptic ...
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... records, it isfairtostate that it is recorded that some centuries before the Christian era,in the reign of TsinChiHoang, all the classical and scientific books that could befound were ordered tobe destroyed.If true, our ...
... records, it isfairtostate that it is recorded that some centuries before the Christian era,in the reign of TsinChiHoang, all the classical and scientific books that could befound were ordered tobe destroyed.If true, our ...
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... records of observations carried on under Asshurbanapal, who sent astronomers todifferent parts to study celestial phenomena. Here is one:— To theDirector of Observations,—My Lord, his humble servant Nabushumiddin, Great Astronomer of ...
... records of observations carried on under Asshurbanapal, who sent astronomers todifferent parts to study celestial phenomena. Here is one:— To theDirector of Observations,—My Lord, his humble servant Nabushumiddin, Great Astronomer of ...
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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 Chaldĉans 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