The Comets: A Descriptive Treatise Upon Those Bodies. With a Condensed Account of the Numerous Modern Discoveries Respecting Them; and a Table of All the Calculated Comets, from the Earliest Ages to the Present Time |
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Page 2
... never- theless led to the frequent observation of the position of these bodies in the heavens , the results of which have been found most valuable in modern times . The number of comets from the Christian era to the 2 THE COMETS .
... never- theless led to the frequent observation of the position of these bodies in the heavens , the results of which have been found most valuable in modern times . The number of comets from the Christian era to the 2 THE COMETS .
Page 4
... position of a comet in reference to the sun's place , on its distance from the earth , and particularly on its intrinsic brightness , or rather , we should say , on its capability of reflecting the sun's rays . Some of these bodies have ...
... position of a comet in reference to the sun's place , on its distance from the earth , and particularly on its intrinsic brightness , or rather , we should say , on its capability of reflecting the sun's rays . Some of these bodies have ...
Page 6
... positions , has never yet taken place : the real motion of the comet must be retrograde or contrary to that of the earth ... position may scarcely change in the course of the day , and if it be advancing towards the earth , the same , or ...
... positions , has never yet taken place : the real motion of the comet must be retrograde or contrary to that of the earth ... position may scarcely change in the course of the day , and if it be advancing towards the earth , the same , or ...
Page 8
... position in respect to the former , and possibly also in some degree by actual change in the form of the comet itself . The envelope , mentioned by astronomers in their observations of large comets , consists of a border of light ...
... position in respect to the former , and possibly also in some degree by actual change in the form of the comet itself . The envelope , mentioned by astronomers in their observations of large comets , consists of a border of light ...
Page 17
... trigonometry , when we know the distance of the nucleus from the earth and its position in respect to the sun , always assuming that the tail is projected from the sun in the line THE COMETS . 17 Chances of collision with the earth •
... trigonometry , when we know the distance of the nucleus from the earth and its position in respect to the sun , always assuming that the tail is projected from the sun in the line THE COMETS . 17 Chances of collision with the earth •
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The Comets - A Descriptive Treatise Upon Those Bodies, with a Condensed ... John Russell Hind No preview available - 2011 |
Common terms and phrases
amongst the stars Aphelion appearance April arrival at perihelion astronomers August Author axis Berlin Biela bodies Bouvard bright Brorsen Burckhardt calculated Cambridge century Chinese observations Clausen Collegio Romano comet discovered comet observed Comet of Encke comet of Halley comet was observed computed constellation D'Arrest December detected diameter Discovered by Pons earth elements epoch exhibited February Gambart grand comet Greenwich Mean Halley's comet heavens Herschel Hevelius Hind History identity Isle of Bourbon January John Herschel July June Jupiter Königsberg Laugier length Lexell March Marseilles Mechain miles month motion naked eye nebulosity November nucleus numbers observatory observed in Europe Octavo October Olbers Ophiuchus parabolic Paris path perihelion distance perihelion passage period of revolution periodical comet perturbations Peter Apian Pingré planetary probable Professor Encke remarkable comet right ascension Rome Rümker Second Edition Sept September Struve sun's tail tions Tycho Brahe Ursa Major Verrier Vico
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