History of Astronomy |
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Page vii
... complete " descriptive astronomy , " and still less a book on " speculative astronomy . " Something of each of these is essential , however , for tracing the progress of thought and knowledge which it is the object of this History to ...
... complete " descriptive astronomy , " and still less a book on " speculative astronomy . " Something of each of these is essential , however , for tracing the progress of thought and knowledge which it is the object of this History to ...
Page 8
... complete astronomy of which no trace can be found . Delambre , in his Histoire de l'Astronomie Ancienne ( 1817 ) , ridicules the opinion of Bailly , and considers that the progress made by all of these nations is insignificant . It will ...
... complete astronomy of which no trace can be found . Delambre , in his Histoire de l'Astronomie Ancienne ( 1817 ) , ridicules the opinion of Bailly , and considers that the progress made by all of these nations is insignificant . It will ...
Page 9
... complete sphere , and that stars are shining at mid - day , although eclipsed by the sun's brightness . It is also asserted , in the book called Chu - King , that in the time of Yao the year was known to have 365 days , and that he ...
... complete sphere , and that stars are shining at mid - day , although eclipsed by the sun's brightness . It is also asserted , in the book called Chu - King , that in the time of Yao the year was known to have 365 days , and that he ...
Page 17
... complete , but some of his conclusions are doubtful . At p . 113 of that work he records the real opinions of Socrates as set forth by Xenophon ; and the reader will , perhaps , sympathise with Socrates in his views on contemporary ...
... complete , but some of his conclusions are doubtful . At p . 113 of that work he records the real opinions of Socrates as set forth by Xenophon ; and the reader will , perhaps , sympathise with Socrates in his views on contemporary ...
Page 27
... complete revolution in a year , the added part being too of the whole , he was able to include the precession of the equinoxes in his explanation of the seasons . His explanation of the seasons is given on leaf 10 of his book ( the ...
... complete revolution in a year , the added part being too of the whole , he was able to include the precession of the equinoxes in his explanation of the seasons . His explanation of the seasons is given on leaf 10 of his book ( the ...
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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