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Page viii
... orbits are concerned , Kepler's three laws ( B , C , D ) were identical with Newton's law of gravitation ( A ) . No one recognises more than the mathe- matical astronomer this feebleness of the human intellect , and no one is more ...
... orbits are concerned , Kepler's three laws ( B , C , D ) were identical with Newton's law of gravitation ( A ) . No one recognises more than the mathe- matical astronomer this feebleness of the human intellect , and no one is more ...
Page 3
... acceleration of the moon's longi- tude and the node of her orbit than any that could be R. A. S. Monthly Notices , Sup .; 1905 . Containing record of solar eclipse , 1062 B.C. , used THE GEOMETRICAL PERIOD 3 ANCIENT Greek AstronoMY.
... acceleration of the moon's longi- tude and the node of her orbit than any that could be R. A. S. Monthly Notices , Sup .; 1905 . Containing record of solar eclipse , 1062 B.C. , used THE GEOMETRICAL PERIOD 3 ANCIENT Greek AstronoMY.
Page 5
... orbit ( the obliquity of the ecliptic ) has been diminishing slowly since prehistoric times ; and this fact has been confirmed by Egyptian and Chinese observations on the length of the shadow of a vertical pillar , made thousands of ...
... orbit ( the obliquity of the ecliptic ) has been diminishing slowly since prehistoric times ; and this fact has been confirmed by Egyptian and Chinese observations on the length of the shadow of a vertical pillar , made thousands of ...
Page 10
... 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 their ...
... 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 their ...
Page 14
... orbit , and apparently made out the diameter correctly as half a degree . He left nothing in writing . His successors , Anaximander ( 610-547 B.C. ) and Anaximenes ( 550-475 B.C. ) , held absurd notions about the sun , moon , and stars ...
... orbit , and apparently made out the diameter correctly as half a degree . He left nothing in writing . His successors , Anaximander ( 610-547 B.C. ) and Anaximenes ( 550-475 B.C. ) , held absurd notions about the sun , moon , and stars ...
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accurate observations Airy astro Astronomer Royal Astronomia Nova astronomical units attraction axis bright calculations Cape Cassini catalogue centre century comet compute Copernicus diameter discovered discovery earth eclipse epicycles equatoreal error excentric explain fact fixed stars Galileo Greenwich Halley heavenly bodies heavens heliometer Hipparchus Huggins hydrogen hypothesis instruments Johann Kepler John Herschel Jupiter Jupiter's Kepler Laplace Lick Observatory light line of apses line of sight lunar Mars mathematical mean distance mean motion measured Mercury meteor method miles a second moon moon's nebulę Newton Observatory orbit parallax perihelion period photographic physical planet planetary pole position predicted proper motion proved Ptolemy R. S. Phil records refractor retrograde retrograde motion revolution revolve round ring rotation round the sun satellites seems showed Sirius solar system spectra spectroscope spectrum spots stellar sun-spots sun's surface supposed tables telescope theory tion Trans Tycho Brahe Uranus velocity Venus Verrier zenith