History of Astronomy |
From inside the book
Results 1-5 of 16
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 Chaldæans 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 Chaldæans 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 . SIVE TICHONICUS . RIFIES TOONS BRANE OF ADIPICU ET INSTRUMENTORVA THE GEOMETRICAL PERIOD 31 334.
... the Fourier series , which in the last century has become a basis of such calculations , both in astronomy and physics generally . SIVE TICHONICUS . RIFIES TOONS BRANE OF ADIPICU ET INSTRUMENTORVA THE GEOMETRICAL PERIOD 31 334.
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 ...
Other editions - View all
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