History of Astronomy |
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... century, whenthe accurate observations of Tycho Brahe enabled Keplerto abolish thesepurely geometrical makeshifts, andtosubstitute a systemin which thesun became physically its controller. FOOTNOTES: [1] Phil.Mag.,vol. xxiv., pp. 4814 ...
... century, whenthe accurate observations of Tycho Brahe enabled Keplerto abolish thesepurely geometrical makeshifts, andtosubstitute a systemin which thesun became physically its controller. FOOTNOTES: [1] Phil.Mag.,vol. xxiv., pp. 4814 ...
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... century, burnt the library of Alexandria, which hadbeenthe centre ofintellectual progress, that centre migrated to Baghdad, and the Arabs became the leaders of scienceand philosophy.In astronomy they made careful observations.Inthe ...
... century, burnt the library of Alexandria, which hadbeenthe centre ofintellectual progress, that centre migrated to Baghdad, and the Arabs became the leaders of scienceand philosophy.In astronomy they made careful observations.Inthe ...
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... century, and made a great catalogue of stars, the first since the time of Hipparchus. At thecloseofthe fifteenth centuryKing Alphonso of Spain employed computers to produce the Alphonsine Tables (1488A.D.), Purbach translated Ptolemy's ...
... century, and made a great catalogue of stars, the first since the time of Hipparchus. At thecloseofthe fifteenth centuryKing Alphonso of Spain employed computers to produce the Alphonsine Tables (1488A.D.), Purbach translated Ptolemy's ...
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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 sunÂspot supposed surface telescope terrestrial thatthe theearth themoon theory thesame thesolar thesun tobe tothe Tycho Brahe Uranus velocity Venus Verrier William Herschel withthe zenith