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Page 92
... R. S. Phil . Trans . , 1868 . 3 Ast . Nach . , No. 1 , 864 . Book IV . THE PHYSICAL PERIOD We have seen how 92 OBSERVATION.
... R. S. Phil . Trans . , 1868 . 3 Ast . Nach . , No. 1 , 864 . Book IV . THE PHYSICAL PERIOD We have seen how 92 OBSERVATION.
Page 96
... R. S. Phil . Trans . , 1774 . 3 Ibid , 1783 . suppositions , or what modification of any of them , 96 THE PHYSICAL PERIOD.
... R. S. Phil . Trans . , 1774 . 3 Ibid , 1783 . suppositions , or what modification of any of them , 96 THE PHYSICAL PERIOD.
Page 98
... R. S. Phil . Trans . ( ser . A ) , 1906 , p . 69-100 . distinct character during the time of a sun - spot 98 THE PHYSICAL PERIOD PHYSI.
... R. S. Phil . Trans . ( ser . A ) , 1906 , p . 69-100 . distinct character during the time of a sun - spot 98 THE PHYSICAL PERIOD PHYSI.
Page 100
... R. S. Phil . Trans . , 1869 , 1870 . Some seconds , and then enlarged selected portions of these 100 THE PHYSICAL PERIOD.
... R. S. Phil . Trans . , 1869 , 1870 . Some seconds , and then enlarged selected portions of these 100 THE PHYSICAL PERIOD.
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Common terms and phrases
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 nebulæ 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