History of Astronomy |
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Page 10
... calculating eclipses was in use . Here , again , patient observation would easily lead to the detection of the eighteen - year cycle known to the Chaldĉans as the Saros . It consists of 235 lunations , and in that time the pole of the ...
... calculating eclipses was in use . Here , again , patient observation would easily lead to the detection of the eighteen - year cycle known to the Chaldĉans as the Saros . It consists of 235 lunations , and in that time the pole of the ...
Page 18
... calculations by supposing that the centre , about which the sun moves uniformly , is situated a little distance from the fixed earth . He called this point the excentric . The line from the earth to the excentric " was called the line ...
... calculations by supposing that the centre , about which the sun moves uniformly , is situated a little distance from the fixed earth . He called this point the excentric . The line from the earth to the excentric " was called the line ...
Page 25
... calculations and the tables . The results of his cogita- tions were printed just before his death in an interesting book , De Revolutionibus Orbium Celestium . It is only by careful reading of this book that the true position of ...
... calculations and the tables . The results of his cogita- tions were printed just before his death in an interesting book , De Revolutionibus Orbium Celestium . It is only by careful reading of this book that the true position of ...
Page 31
... the Fourier series , which in the last century has become a basis of such calculations , both in astronomy and physics generally . QVADRANS MVRALIS SIVE TICHONICUS . KIFINS TICHONS BAHS OF ALDINICE THE GEOMETRICAL PERIOD 31.
... the Fourier series , which in the last century has become a basis of such calculations , both in astronomy and physics generally . QVADRANS MVRALIS SIVE TICHONICUS . KIFINS TICHONS BAHS OF ALDINICE THE GEOMETRICAL PERIOD 31.
Page 50
... calculations , especially those dealing with the trigonometrical functions of angles , were so much simplified that Laplace declared that by this invention the life - work of an astronomer was doubled . Jeremiah Horrocks ( born 1619 ...
... calculations , especially those dealing with the trigonometrical functions of angles , were so much simplified that Laplace declared that by this invention the life - work of an astronomer was doubled . Jeremiah Horrocks ( born 1619 ...
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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