History of Astronomy |
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Page 18
... motion of the sun ; and allowed for this in his calculations by supposing that the centre , about which the sun moves uniformly , is situated a little distance from the fixed earth . He called this ... mean motion 18 THE GEOMETRICAL PERIOD.
... motion of the sun ; and allowed for this in his calculations by supposing that the centre , about which the sun moves uniformly , is situated a little distance from the fixed earth . He called this ... mean motion 18 THE GEOMETRICAL PERIOD.
Page 19
... mean motion . This was conclusively estab- lished , but could not be explained by the Newtonian theory for quite a long time . ] He determined the plane of the moon's orbit and its inclination to the ecliptic . The motion of this plane ...
... mean motion . This was conclusively estab- lished , but could not be explained by the Newtonian theory for quite a long time . ] He determined the plane of the moon's orbit and its inclination to the ecliptic . The motion of this plane ...
Page 41
... motions of all the planets . " And he did it , with elliptic orbits having ... motion was the most strict and complete theory that had ever been attempted ... mean distance of the planet from the sun . E excellence of Copernicus's book ...
... motions of all the planets . " And he did it , with elliptic orbits having ... motion was the most strict and complete theory that had ever been attempted ... mean distance of the planet from the sun . E excellence of Copernicus's book ...
Page 50
... mean motion , and indicated the retardation of Saturn's mean motion . Horrocks ' investigations , so far as they could be collected , were published posthumously in 1672 , and seldom , if ever , has a man who lived only twenty - two ...
... mean motion , and indicated the retardation of Saturn's mean motion . Horrocks ' investigations , so far as they could be collected , were published posthumously in 1672 , and seldom , if ever , has a man who lived only twenty - two ...
Page 57
... Mean monthly motion of Apses Mean annual motion of nodes Mean value of " variation Annual equation ... Newton . 1.31.28 19.18.1,23 36.10 Modern Tables . ... ... 3.4.0 19.21.22,50 35.47 11.51 ... 11.14 19.43 ... 22.17 9.24 ... 9.0 Inequality ...
... Mean monthly motion of Apses Mean annual motion of nodes Mean value of " variation Annual equation ... Newton . 1.31.28 19.18.1,23 36.10 Modern Tables . ... ... 3.4.0 19.21.22,50 35.47 11.51 ... 11.14 19.43 ... 22.17 9.24 ... 9.0 Inequality ...
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Common terms and phrases
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