History of Physical Astronomy: From the Earliest Ages to the Middle of the Nineteenth Century. Comprehending a Detailed Account of the Establishment of the Theory of Gravitation by Newton, with an Exposition of the Progress of Research on All the Other Subjects of Celestial Physics |
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Page 275
... apparent that the real orbit was an ellipse of small eccentricity . Elliptic elements of the planet were first ... diameter when viewed at that distance . The former of these could be determined with facility , and with a considerable degree ...
... apparent that the real orbit was an ellipse of small eccentricity . Elliptic elements of the planet were first ... diameter when viewed at that distance . The former of these could be determined with facility , and with a considerable degree ...
Page 360
... apparent diameter exceed the apparent diameter of the sun . This condi- tion , however , is not always fulfilled , for , as the moon revolves in an orbit of considerable eccentricity , her distance from the earth varies in a sensible ...
... apparent diameter exceed the apparent diameter of the sun . This condi- tion , however , is not always fulfilled , for , as the moon revolves in an orbit of considerable eccentricity , her distance from the earth varies in a sensible ...
Page 545
... apparent diameter of a Lyræ , and he so far succeeded in his object as to assign to the star an apparent diameter of only 5 " . This was undoubtedly a much nearer approximation to the truth than any esti- mate that had been hitherto ...
... apparent diameter of a Lyræ , and he so far succeeded in his object as to assign to the star an apparent diameter of only 5 " . This was undoubtedly a much nearer approximation to the truth than any esti- mate that had been hitherto ...
Contents
Early notions of Physical Astronomy Newton His first Rescarches on the sub | 15 |
CHAPTER II | 33 |
CHAPTER III | 41 |
Copyright | |
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History of Physical Astronomy: From the Earliest Ages to the Middle of the ... Robert Grant No preview available - 2015 |
Common terms and phrases
Acad angle apparent diameter apparent magnitude appeared ascertained assigned Astronomer Royal astronomers atmosphere axis calculated Cassini catalogue celestial bodies centre comet computed conclusion Connaissance des Temps consequence deduced determined discovered discovery disk disturbing force earth eccentricity effect elements ellipticity epoch equal equator errors exhibited geometer gravitation Halley Hence Hipparchus illustrious inclination inequality instrument investigation Jupiter Kepler labours Lagrange Laplace light limb longitude luminous lunar magnitude mass mean distance mean motion Mém method moon moon's Neptune Newton node object observations Observatory obtained occasion orbit parallax perihelion period perturbations phenomena phenomenon Phil physical planetary position principle proper motion radius vector rays reflecting telescope refraction remarked researches respect revolving right ascension ring rotation Royal Royal Observatory satellite Saturn similar Sir William Herschel solar spots stars Struve sun's supposed surface tangential angle telescope theory tion total eclipse Trans Uranus variation Verrier visible