History of Astronomy |
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Page 58
... ring of satellites revolving round the earth's equator would consequently all regress . And if joined into a solid ring its node would regress ; and it would do so , only more slowly , if encumbered by the spherical part of the earth's ...
... ring of satellites revolving round the earth's equator would consequently all regress . And if joined into a solid ring its node would regress ; and it would do so , only more slowly , if encumbered by the spherical part of the earth's ...
Page 74
... rings to show the ecliptic and zodiac , as well as the equinoctial and solstitial colures ; but we have no record . We ... ring which was passed over the thumb , and hung vertically . A pointer was fixed to a pin at the centre . This arm ...
... rings to show the ecliptic and zodiac , as well as the equinoctial and solstitial colures ; but we have no record . We ... ring which was passed over the thumb , and hung vertically . A pointer was fixed to a pin at the centre . This arm ...
Page 105
... ring seems to be made of tufts of fine hairs with aigrettes or radiations from both poles , and streamers from the equator . On September 19th , 1868 , eclipse spectroscopy began with the Indian eclipse , in which all observers found ...
... ring seems to be made of tufts of fine hairs with aigrettes or radiations from both poles , and streamers from the equator . On September 19th , 1868 , eclipse spectroscopy began with the Indian eclipse , in which all observers found ...
Page 110
... ring of asteroids would account for the unexplained part of the motion of the line of apses of Mercury's orbit amounting to 38 " per century . Mars . The first study of the appearance of Mars by Miraldi led him to believe that there ...
... ring of asteroids would account for the unexplained part of the motion of the line of apses of Mercury's orbit amounting to 38 " per century . Mars . The first study of the appearance of Mars by Miraldi led him to believe that there ...
Page 116
... ring was a complete puzzle to Galileo , most of all when the planet reached a position where the plane of the ring was in line with the earth , and the ring disappeared ( December 4th , 1612 ) . It was not until 1656 that Huyghens , in ...
... ring was a complete puzzle to Galileo , most of all when the planet reached a position where the plane of the ring was in line with the earth , and the ring disappeared ( December 4th , 1612 ) . It was not until 1656 that Huyghens , in ...
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Common terms and phrases
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