History of Astronomy |
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Page 13
... at the present day . Then again , Knobel reminds us of " the most interesting discovery a few years ago by Father Strassmeier of a Babylonian tablet recording a partial lunar eclipse at Babylon in the seventh year of Cambyses , on the ...
... at the present day . Then again , Knobel reminds us of " the most interesting discovery a few years ago by Father Strassmeier of a Babylonian tablet recording a partial lunar eclipse at Babylon in the seventh year of Cambyses , on the ...
Page 19
... at the rate of 52 ′′ .1 every year , was necessary for the progress of accurate astronomical observations . It is due to a steady revo- lution of the earth's pole round the pole of the ecliptic once in 26,000 years in the opposite ...
... at the rate of 52 ′′ .1 every year , was necessary for the progress of accurate astronomical observations . It is due to a steady revo- lution of the earth's pole round the pole of the ecliptic once in 26,000 years in the opposite ...
Page 20
... at the lower end of the passage would be able to see yDraconis , the then pole- star , at its lower culmination.1 It has been suggested that the passage was made for this purpose . On other grounds the date assigned to the Great Pyramid ...
... at the lower end of the passage would be able to see yDraconis , the then pole- star , at its lower culmination.1 It has been suggested that the passage was made for this purpose . On other grounds the date assigned to the Great Pyramid ...
Page 22
... at the earth . If at the other end of the bar one end of a shorter bar is pivotted , having the planet at its other end , then the planet is given an annual motion in the secondary circle ( the epicycle ) , whose centre revolves round ...
... at the earth . If at the other end of the bar one end of a shorter bar is pivotted , having the planet at its other end , then the planet is given an annual motion in the secondary circle ( the epicycle ) , whose centre revolves round ...
Page 23
... at the sun , and to extend the same system to the major planets . Some- thing of this sort had been proposed by the Egyptians ( we are told by Cicero and others ) , and was accepted by Tycho Brahe ; and was as true a representation of ...
... at the sun , and to extend the same system to the major planets . Some- thing of this sort had been proposed by the Egyptians ( we are told by Cicero and others ) , and was accepted by Tycho Brahe ; and was as true a representation of ...
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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