History of Astronomy |
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Page 66
... ( Uranus ) ,, 99 = 52 95 192 4+ 48 = 52 4+ 96 = 100 4 + 192 = 196 Mars 4 + 384 = 388 99 15 4 + 12 = 16 4 + 24 = 28 All the five planets , and the earth , fitted this rule , except that there was a blank between Mars and Jupiter . When Uranus ...
... ( Uranus ) ,, 99 = 52 95 192 4+ 48 = 52 4+ 96 = 100 4 + 192 = 196 Mars 4 + 384 = 388 99 15 4 + 12 = 16 4 + 24 = 28 All the five planets , and the earth , fitted this rule , except that there was a blank between Mars and Jupiter . When Uranus ...
Page 68
... Uranus , before it had ever been seen , when the analysis of Adams and Le Verrier gave a final proof of the powers of Newton's great law to explain any planetary irregularity . After Sir William Herschel discovered Uranus , in 1781 , it ...
... Uranus , before it had ever been seen , when the analysis of Adams and Le Verrier gave a final proof of the powers of Newton's great law to explain any planetary irregularity . After Sir William Herschel discovered Uranus , in 1781 , it ...
Page 69
... Uranus could be explained by assuming a certain orbit , and position in that orbit , of a hypothetical planet even more distant than Uranus . Such an explanation had been suggested , but until 1843 no one had the boldness to attack the ...
... Uranus could be explained by assuming a certain orbit , and position in that orbit , of a hypothetical planet even more distant than Uranus . Such an explanation had been suggested , but until 1843 no one had the boldness to attack the ...
Page 71
... Uranus's motion to mean that an unknown planet was in a certain place in the heavens , where it was found . At the time there was an unpleasant display of inter- national jealousy . The British people thought that the earlier date of ...
... Uranus's motion to mean that an unknown planet was in a certain place in the heavens , where it was found . At the time there was an unpleasant display of inter- national jealousy . The British people thought that the earlier date of ...
Page 111
... ( Uranus and Neptune being still indeterminate ) . The general surface of Mars is a deep yellow ; but there are dark grey or greenish patches . Sir John Herschel was the first to attribute the ruddy colour of Mars to its soil rather than ...
... ( Uranus and Neptune being still indeterminate ) . The general surface of Mars is a deep yellow ; but there are dark grey or greenish patches . Sir John Herschel was the first to attribute the ruddy colour of Mars to its soil rather than ...
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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