History of Astronomy |
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Page 30
... error , which was started not by astro- nomers acquainted with Kepler's work , but by those who desired to put the Church in the wrong by extolling Copernicus . Copernicus dreaded much the abuse he expected to receive from philosophers ...
... error , which was started not by astro- nomers acquainted with Kepler's work , but by those who desired to put the Church in the wrong by extolling Copernicus . Copernicus dreaded much the abuse he expected to receive from philosophers ...
Page 35
... errors of graduation and the errors of mounting , the necessary correction being applied to each observation . When ... error in right ascension is only 24 " , 1 , and in declination only 25 " , 9 . ness . Clocks of a sort had been made ...
... errors of graduation and the errors of mounting , the necessary correction being applied to each observation . When ... error in right ascension is only 24 " , 1 , and in declination only 25 " , 9 . ness . Clocks of a sort had been made ...
Page 37
... error as much as two degrees . He re - discovered the inequality called " variation " by observing the moon in all phases - a thing which had not been attended to . [ It is remarkable that in the nineteenth century Sir George Airy estab ...
... error as much as two degrees . He re - discovered the inequality called " variation " by observing the moon in all phases - a thing which had not been attended to . [ It is remarkable that in the nineteenth century Sir George Airy estab ...
Page 40
... observations , he still found errors amounting to eight minutes of a degree . Then he said boldly that it was impossible that so good an observer as Tycho could have made a mistake of eight minutes , and 40 THE DYNAMICAL PERIOD.
... observations , he still found errors amounting to eight minutes of a degree . Then he said boldly that it was impossible that so good an observer as Tycho could have made a mistake of eight minutes , and 40 THE DYNAMICAL PERIOD.
Page 50
... errors in Jupiter's calculated place , due to what we now know as the long inequality of Jupiter and Saturn , and measured with considerable accuracy the acceleration at that date of Jupiter's mean motion , and indicated the retardation ...
... errors in Jupiter's calculated place , due to what we now know as the long inequality of Jupiter and Saturn , and measured with considerable accuracy the acceleration at that date of Jupiter's mean motion , and indicated the retardation ...
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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