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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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... the same feature; all the passagesbeing inclined at an angle between 26° and 27° to the horizon and inthe plane ofthemeridian. It also appears that 4,000 years ago—i.e., about 2100B.C.—an observer atthe lowerend of the passage wouldbe ...
... the same feature; all the passagesbeing inclined at an angle between 26° and 27° to the horizon and inthe plane ofthemeridian. It also appears that 4,000 years ago—i.e., about 2100B.C.—an observer atthe lowerend of the passage wouldbe ...
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... the same system to the major planets. Something ofthis sort had been proposedbythe Egyptians (weare told by Cicero and others), and was accepted by Tycho Brahe; and was as true a representation of the relative motions in thesolar system ...
... the same system to the major planets. Something ofthis sort had been proposedbythe Egyptians (weare told by Cicero and others), and was accepted by Tycho Brahe; and was as true a representation of the relative motions in thesolar system ...
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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