History of Astronomy |
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As each new discovery opens up, itmay be, boundless oceans for investigation,
for wonder,and for admiration, the great astronomers, refusingtoaccept mere
hypotheses as true, have founded upon these discoveries ascienceas exactinits
...
As each new discovery opens up, itmay be, boundless oceans for investigation,
for wonder,and for admiration, the great astronomers, refusingtoaccept mere
hypotheses as true, have founded upon these discoveries ascienceas exactinits
...
Page
This discovery of precession oftheequinoxes, which takesplace at the rateof 52".1
everyyear, was necessary forthe progressof accurate astronomical observations.
Itisdue toa steadyrevolution of theearth's pole roundthepole of theeclipticonce ...
This discovery of precession oftheequinoxes, which takesplace at the rateof 52".1
everyyear, was necessary forthe progressof accurate astronomical observations.
Itisdue toa steadyrevolution of theearth's pole roundthepole of theeclipticonce ...
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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