History of Astronomy |
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... tobe allowed to read, in the originalLatin of the brilliantKepler, howhe was able —by observations taken froma moving platform, theearth, of the directionsof a movingobject, Mars—to deduce the exact shape of the path of eachofthese ...
... tobe allowed to read, in the originalLatin of the brilliantKepler, howhe was able —by observations taken froma moving platform, theearth, of the directionsof a movingobject, Mars—to deduce the exact shape of the path of eachofthese ...
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... B.C., when eclipses began tobe recorded once more with some approach to continuity. Shortly afterwards noticesof comets were added. Biot gave a listof these, andMr.John Williams, in 1871, published Observations of Comets from 611 B.C..
... B.C., when eclipses began tobe recorded once more with some approach to continuity. Shortly afterwards noticesof comets were added. Biot gave a listof these, andMr.John Williams, in 1871, published Observations of Comets from 611 B.C..
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... tobe destroyed.If true, our losstherefromisas greatasfrom theburning of the Alexandrianlibrary by the Caliph Omar. Heburnt all the books because he held thattheymustbe either consistent or inconsistent with theKoran,andinthe one case ...
... tobe destroyed.If true, our losstherefromisas greatasfrom theburning of the Alexandrianlibrary by the Caliph Omar. Heburnt all the books because he held thattheymustbe either consistent or inconsistent with theKoran,andinthe one case ...
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... tobe fixedand the earth to revolve. The cumbrous systemadvocated by Ptolemyanswered its purpose, enabling himto predict astronomical events approximately. He improved the lunartheory considerably, and discovered minorinequalities which ...
... tobe fixedand the earth to revolve. The cumbrous systemadvocated by Ptolemyanswered its purpose, enabling himto predict astronomical events approximately. He improved the lunartheory considerably, and discovered minorinequalities which ...
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... tobe carried withhiminhis annual motion roundthe earth. He noticedthatthe same supposition, if extendedto Mars,Jupiter, and Saturn, would explain easilywhythey, and especiallyMars, seem somuch brighter in opposition. ForMars would ...
... tobe carried withhiminhis annual motion roundthe earth. He noticedthatthe same supposition, if extendedto Mars,Jupiter, and Saturn, would explain easilywhythey, and especiallyMars, seem somuch brighter in opposition. ForMars would ...
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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