The Geography of the Heavens, and Class Book of Astronomy; Accompanied by a Celestial Atlas |
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Page xiii
... causes of certain ce- lestial phenomena , has tended to DISSIPATÉ SUPERSTITIOUS NOTION'S and vain alarms . In former ages the approach of a blazing comet , or a total eclipse of the sun or moon , were regarded with universal ...
... causes of certain ce- lestial phenomena , has tended to DISSIPATÉ SUPERSTITIOUS NOTION'S and vain alarms . In former ages the approach of a blazing comet , or a total eclipse of the sun or moon , were regarded with universal ...
Page xviii
... causes of the seasons , the difficulty of reconciling the apparent motions of the planets with their real mo- tions in circular or elliptical orbits , the effects produced by centri- fugal and centripetal forces , the precession of the ...
... causes of the seasons , the difficulty of reconciling the apparent motions of the planets with their real mo- tions in circular or elliptical orbits , the effects produced by centri- fugal and centripetal forces , the precession of the ...
Page 29
... caused by the Earth's revolution on its axis ; so that they rise and set sooner every succeeding day by about four minutes , than they did on the preceding . This is called their daily acceleration . It amounts to just two hours a month ...
... caused by the Earth's revolution on its axis ; so that they rise and set sooner every succeeding day by about four minutes , than they did on the preceding . This is called their daily acceleration . It amounts to just two hours a month ...
Page 40
... causes , take place on their surface . This conjecture , continues he , is confirmed by their change of colour , which is analogous to that presented to us on the earth by those bodies which are set on fire and then gradually ...
... causes , take place on their surface . This conjecture , continues he , is confirmed by their change of colour , which is analogous to that presented to us on the earth by those bodies which are set on fire and then gradually ...
Page 46
... caused the head of Helle to turn with giddiness , and she fell from his back into that part of the sea which was after- wards called Hellespont , in commemoration of the dreadful event . Phryxus arrived safe at Colchis , but was soon ...
... caused the head of Helle to turn with giddiness , and she fell from his back into that part of the sea which was after- wards called Hellespont , in commemoration of the dreadful event . Phryxus arrived safe at Colchis , but was soon ...
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Common terms and phrases
3d magnitude 4th magnitude ancient angle appear Arcturus Argo Navis Aries astronomers Auriga axis Beta brightest called Cassiopeia celestial centre Cepheus circle cluster colure comet constellation Cor Caroli declination degree Delta Denebola Describe diameter direction distinguished diurnal motion Earth east ecliptic equal equator equinoctial figure fixed stars Gamma globe head heavenly bodies heavens Hercules Herschel horizon Jupiter latitude length Libra light longitude mean distance Mercury meridian millions of miles minutes Moon Moon's motion naked eye nearly nebulæ night node north pole northern hemisphere observed orbit Orion parallax passing perihelion period Perseus phenomena planets Pleiades polar star position principal star represented revolution revolve right ascension rise satellites Saturn seasons seen side sidereal Sirius situated small stars solar system solstice southern spots Sun's supposed surface Taurus telescope tion triangle Ursa Venus vernal equinox Virgo visible whole number Zeta Zodiac