History of Astronomy |
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Page 93
... in much of his work upon Flamsteed . When Galileo directed his telescope to the heavens , when Secchi and Huggins studied the chemistry of the t stars by means of the spectroscope , and when 93 Book IV THE PHYSICAL PERIOD 3.
... in much of his work upon Flamsteed . When Galileo directed his telescope to the heavens , when Secchi and Huggins studied the chemistry of the t stars by means of the spectroscope , and when 93 Book IV THE PHYSICAL PERIOD 3.
Page 99
... Huggins in 1876 . It is noteworthy that from the outset De la Rue recognised the value of stereoscopic vision , which is now known to be of supreme accuracy . In 1853 he combined pairs of photographs of the moon in the same phase , but ...
... Huggins in 1876 . It is noteworthy that from the outset De la Rue recognised the value of stereoscopic vision , which is now known to be of supreme accuracy . In 1853 he combined pairs of photographs of the moon in the same phase , but ...
Page 105
... Huggins had suggested this observation in February , 1868 , his idea being to use prisms of such great dispersive power that the continuous spectrum reflected by our atmosphere should be greatly weakened , while a bright line would ...
... Huggins had suggested this observation in February , 1868 , his idea being to use prisms of such great dispersive power that the continuous spectrum reflected by our atmosphere should be greatly weakened , while a bright line would ...
Page 106
... Huggins was able , by using a wide slit , to see the whole of a prominence and note its shape . Prominences are classified , according to their form , into " flame " and " cloud " prominences , the spectrum of the latter showing calcium ...
... Huggins was able , by using a wide slit , to see the whole of a prominence and note its shape . Prominences are classified , according to their form , into " flame " and " cloud " prominences , the spectrum of the latter showing calcium ...
Page 120
... Huggins compared the spectrum of Winnecke's comet with that of a Geissler tube contain- ing olefiant gas , and found exact agreement . Nearly all comets have shown the same spectrum.1 A very In 1874 , when the writer was crossing the ...
... Huggins compared the spectrum of Winnecke's comet with that of a Geissler tube contain- ing olefiant gas , and found exact agreement . Nearly all comets have shown the same spectrum.1 A very In 1874 , when the writer was crossing the ...
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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