History of Astronomy |
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... Jupiter, Saturn,and Mercury wereall between the eleventh and eighteenthdegrees of Pisces, all visible togetherin the evening on February 28th 2446 B.C., while onthesame day the sun and moon were in conjunctionat 9 a.m., andthat on March ...
... Jupiter, Saturn,and Mercury wereall between the eleventh and eighteenthdegrees of Pisces, all visible togetherin the evening on February 28th 2446 B.C., while onthesame day the sun and moon were in conjunctionat 9 a.m., andthat on March ...
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... Jupiter, and Saturn. We have records of observations carried on under Asshurbanapal, who sent astronomers todifferent parts to study celestial phenomena. Here is one:— To theDirector of Observations,—My Lord, his humble servant ...
... Jupiter, and Saturn. We have records of observations carried on under Asshurbanapal, who sent astronomers todifferent parts to study celestial phenomena. Here is one:— To theDirector of Observations,—My Lord, his humble servant ...
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... rate round the excentric. Ptolemy supposed the centres of the epicycles of Mercuryand Venusto be ona bar passing through thesun, and to bebetween the earth and the sun. The centres of the epicycles of Mars, Jupiter, and Saturn.
... rate round the excentric. Ptolemy supposed the centres of the epicycles of Mercuryand Venusto be ona bar passing through thesun, and to bebetween the earth and the sun. The centres of the epicycles of Mars, Jupiter, and Saturn.
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George Forbes. The centres of the epicycles of Mars, Jupiter, and Saturn were supposed to be further away than the sun. Mercury and Venus were supposed to revolve in their epicycles in their own periodic timesand in the deferentround the ...
George Forbes. The centres of the epicycles of Mars, Jupiter, and Saturn were supposed to be further away than the sun. Mercury and Venus were supposed to revolve in their epicycles in their own periodic timesand in the deferentround the ...
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... Jupiter, and Saturn, would explain easilywhythey, and especiallyMars, seem somuch brighter in opposition. ForMars would thenbea great deal nearer tothe earth than at other times. It wouldalso explain the retrograde motion of planets ...
... Jupiter, and Saturn, would explain easilywhythey, and especiallyMars, seem somuch brighter in opposition. ForMars would thenbea great deal nearer tothe earth than at other times. It wouldalso explain the retrograde motion of planets ...
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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