History of Astronomy |
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Page 3
... moon with as much confidence as it is affirmed in Lord Wolseley's Soldier's Pocket Book . Even if the scientific spirit of ... moon's longi- tude and the node of her orbit than any that could be R. A. S. Monthly Notices , Sup .; 1905 ...
... moon with as much confidence as it is affirmed in Lord Wolseley's Soldier's Pocket Book . Even if the scientific spirit of ... moon's longi- tude and the node of her orbit than any that could be R. A. S. Monthly Notices , Sup .; 1905 ...
Page 10
... moon's orbit revolves just once round the pole of the ecliptic , and for this reason the eclipses in one cycle are repeated with very slight modification in the next cycle , and so on for many centuries . It may be that the neglect of ...
... moon's orbit revolves just once round the pole of the ecliptic , and for this reason the eclipses in one cycle are repeated with very slight modification in the next cycle , and so on for many centuries . It may be that the neglect of ...
Page 18
... moon , which is far short of the mark . He also found the sun's diameter , correctly , to be half a degree . Eratosthenes ( 276-196 B.C. ) measured the inclination to the equator of the sun's ... moon's mean motion 18 THE GEOMETRICAL PERIOD.
... moon , which is far short of the mark . He also found the sun's diameter , correctly , to be half a degree . Eratosthenes ( 276-196 B.C. ) measured the inclination to the equator of the sun's ... moon's mean motion 18 THE GEOMETRICAL PERIOD.
Page 19
... moon's orbit and its inclination to the ecliptic . The motion of this plane round the pole of the ecliptic once in eighteen years complicated the problem . He located the moon's excentric as he had done the sun's . He also discovered ...
... moon's orbit and its inclination to the ecliptic . The motion of this plane round the pole of the ecliptic once in eighteen years complicated the problem . He located the moon's excentric as he had done the sun's . He also discovered ...
Page 24
... moon's apse , and thought he detected a smaller progression of the sun's apse . His tables were much more accurate than Ptolemy's . Abul Wefa , in the tenth century , seems to have discovered the moon's " variation . " Meanwhile the ...
... moon's apse , and thought he detected a smaller progression of the sun's apse . His tables were much more accurate than Ptolemy's . Abul Wefa , in the tenth century , seems to have discovered the moon's " variation . " Meanwhile the ...
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accepted accurate ancient appear astronomers attraction bodies bright calculations called catalogue cause centre century Chinese circle comet compared complete Copernicus determined diameter direction discovered discovery distance earth eclipse effect elements enabled epicycles equal error explain fact fixed follow force four Galileo gave give given gravitation heavens held Herschel increased interesting Jupiter Kepler knowledge known later LIBRARIES light lunar Mars mass mathematical mean measured method miles moon moon's motion move Newton noticed object observations Observatory opposition orbit original parallax pass period photographic physical planet planetary pole position predicted progress proper motion proved records researches revolve ring rotation round Royal satellites seems seen showed SIGILLUM solar system spectroscope spectrum stars studied sun's supposed surface tables telescope theory tion trace true Tycho Brahe UNIVERSITY VERITAS