History of Astronomy |
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... orbits, andthecauses of theirmotions, he strongly objected to sucha wasteof valuable time. Hedwelton the contradictions and conflicting opinions ofthe physical philosophers, ... and,infine,heheld thatthespeculators on the universe and ...
... orbits, andthecauses of theirmotions, he strongly objected to sucha wasteof valuable time. Hedwelton the contradictions and conflicting opinions ofthe physical philosophers, ... and,infine,heheld thatthespeculators on the universe and ...
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... orbits pass, thus facilitating the determination of planetary motions. Aristarchus (320250B.C.) showedthat thesun must beat least nineteen times asfaroffasthe moon,which isfarshort of the mark. Healsofound the sun's diameter, correctly ...
... orbits pass, thus facilitating the determination of planetary motions. Aristarchus (320250B.C.) showedthat thesun must beat least nineteen times asfaroffasthe moon,which isfarshort of the mark. Healsofound the sun's diameter, correctly ...
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... orbit and its inclination to the ecliptic. Themotion of thisplaneround the pole of the ecliptic oncein eighteen yearscomplicated the problem.He located the moon'sexcentric ashehaddone the sun's. He also discoveredsomeof theminor ...
... orbit and its inclination to the ecliptic. Themotion of thisplaneround the pole of the ecliptic oncein eighteen yearscomplicated the problem.He located the moon'sexcentric ashehaddone the sun's. He also discoveredsomeof theminor ...
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... orbit.The only object ever aimed at in thosedays was to preparetables for predicting the placesof the planets. It was nota mechanical problem;there was no notionof a governing lawof forces. From thistimeonwards allinterest in astronomy ...
... orbit.The only object ever aimed at in thosedays was to preparetables for predicting the placesof the planets. It was nota mechanical problem;there was no notionof a governing lawof forces. From thistimeonwards allinterest in astronomy ...
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... orbit. This isinits main features thesystem propounded by Copernicus.But attention must, tostate the casefully, be drawn totwo points to be found in hisfirst andsixth books respectively. The first point relates tothe seasons, andit ...
... orbit. This isinits main features thesystem propounded by Copernicus.But attention must, tostate the casefully, be drawn totwo points to be found in hisfirst andsixth books respectively. The first point relates tothe seasons, andit ...
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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