History of Astronomy |
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Page 29
... parallax in the stars seemed to condemn his system , which had no physical basis to recommend it , and no simplification at all over the Egypto - Tychonic system , to which Copernicus himself drew attention . It has been necessary to ...
... parallax in the stars seemed to condemn his system , which had no physical basis to recommend it , and no simplification at all over the Egypto - Tychonic system , to which Copernicus himself drew attention . It has been necessary to ...
Page 36
... parallax . Later he employed the same method with the comets of 1577 , 1580 , 1582 , 1585 , 1590 , 1593 , and 1596 , and proved that they too had no measurable parallax and must be very distant . The startling discovery that stars are ...
... parallax . Later he employed the same method with the comets of 1577 , 1580 , 1582 , 1585 , 1590 , 1593 , and 1596 , and proved that they too had no measurable parallax and must be very distant . The startling discovery that stars are ...
Page 38
... parallax . He says ( De Mundi , etc. ) that the Ptolemean system was too complicated , and the new one which that great man Copernicus had proposed , following in the footsteps of Aristarchus of Samos , though there was nothing in it ...
... parallax . He says ( De Mundi , etc. ) that the Ptolemean system was too complicated , and the new one which that great man Copernicus had proposed , following in the footsteps of Aristarchus of Samos , though there was nothing in it ...
Page 79
... parallax of stars . He certainly found an annual varia- tion of zenith distance , but not at the times of year required by the parallax . This led him to the discovery of the " aberration " of light and of nutation . Bradley has been ...
... parallax of stars . He certainly found an annual varia- tion of zenith distance , but not at the times of year required by the parallax . This led him to the discovery of the " aberration " of light and of nutation . Bradley has been ...
Page 84
... parallax , it has been recognised as an instrument of the very highest accuracy , measuring the distance between stars correctly to less than a tenth of a second of arc . The superiority of the heliometer over all other devices ( except ...
... parallax , it has been recognised as an instrument of the very highest accuracy , measuring the distance between stars correctly to less than a tenth of a second of arc . The superiority of the heliometer over all other devices ( except ...
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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