History of Astronomy |
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... predicted an eclipse, which caused much alarm, and ended the battle between the Medes and Lydians. Airy fixed the date May 28th, 585 B.C. But other modern astronomers give different dates. ThaleswenttoEgypt tostudy science,and learnt ...
... predicted an eclipse, which caused much alarm, and ended the battle between the Medes and Lydians. Airy fixed the date May 28th, 585 B.C. But other modern astronomers give different dates. ThaleswenttoEgypt tostudy science,and learnt ...
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... having this centrewas called theequant,and he supposed that a radius drawnto the sun fromtheexcentric passesoverequal arcs on theequant in equal times.He then computed tables for predicting the place of the sun. He proceeded in.
... having this centrewas called theequant,and he supposed that a radius drawnto the sun fromtheexcentric passesoverequal arcs on theequant in equal times.He then computed tables for predicting the place of the sun. He proceeded in.
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George Forbes. for predicting the place of the sun. He proceeded in the same way to compute Lunar tables. Making use ofChaldæan eclipses, he was able to get an accurate value ofthe moon's mean motion. [Halley, in 1693, compared this ...
George Forbes. for predicting the place of the sun. He proceeded in the same way to compute Lunar tables. Making use ofChaldæan eclipses, he was able to get an accurate value ofthe moon's mean motion. [Halley, in 1693, compared this ...
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... predict astronomical events approximately. He improved the lunartheory considerably, and discovered minorinequalities which couldbe allowed for by theaddition ofnew epicycles.We may look upon these epicyclesof Apollonius, and the ...
... predict astronomical events approximately. He improved the lunartheory considerably, and discovered minorinequalities which couldbe allowed for by theaddition ofnew epicycles.We may look upon these epicyclesof Apollonius, and the ...
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... predicting the placesof the planets. It was nota mechanical problem;there was no notionof a governing lawof forces. From thistimeonwards allinterest in astronomy seemed, in Europe at least, tosink to a low ebb. Whenthe Caliph Omar ...
... predicting the placesof the planets. It was nota mechanical problem;there was no notionof a governing lawof forces. From thistimeonwards allinterest in astronomy seemed, in Europe at least, tosink to a low ebb. Whenthe Caliph Omar ...
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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