History of Astronomy |
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Page 18
... distance from the fixed earth . He called this point the excentric . The line from the earth to the excentric " was ... mean motion 18 THE GEOMETRICAL PERIOD.
... distance from the fixed earth . He called this point the excentric . The line from the earth to the excentric " was ... mean motion 18 THE GEOMETRICAL PERIOD.
Page 41
... distances of the planets from the sun , which filled him with so much delight , was a display of pure fancy . His ... mean distance of the planet from the sun . E excellence of Copernicus's book helped to prolong the life of D 2 THE ...
... distances of the planets from the sun , which filled him with so much delight , was a display of pure fancy . His ... mean distance of the planet from the sun . E excellence of Copernicus's book helped to prolong the life of D 2 THE ...
Page 67
... mean distance from the sun was found to be 2.767 , agreeing with the 2.8 given by Bode's law . Its orbit was found to be inclined over 10 ° to the ecliptic , and its diameter was only 161 miles . On March 28th , 1802 , Olbers discovered ...
... mean distance from the sun was found to be 2.767 , agreeing with the 2.8 given by Bode's law . Its orbit was found to be inclined over 10 ° to the ecliptic , and its diameter was only 161 miles . On March 28th , 1802 , Olbers discovered ...
Page 69
... mean distance agreeing with Bode's law , he obtained a first approximation to the position of the supposed planet . He then asked Professor Challis , of Cambridge , to procure the latest observations of Uranus from Green- wich , which ...
... mean distance agreeing with Bode's law , he obtained a first approximation to the position of the supposed planet . He then asked Professor Challis , of Cambridge , to procure the latest observations of Uranus from Green- wich , which ...
Page 119
... distance . A group of four asteroids has lately been found , with a mean distance and period equal to that of Jupiter . To three of these masculine names have been given - Hector , Patroclus , Achilles ; the other has not yet been named ...
... distance . A group of four asteroids has lately been found , with a mean distance and period equal to that of Jupiter . To three of these masculine names have been given - Hector , Patroclus , Achilles ; the other has not yet been named ...
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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