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 4
... months . Much depends on the apparent 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 ...
... months . Much depends on the apparent 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 ...
Page 5
... months , and these six instances have all occurred during the present century . There are some few comets which have only been seen once , unfavourable weather preventing further observation . In these cases we cannot ascertain DURATION ...
... months , and these six instances have all occurred during the present century . There are some few comets which have only been seen once , unfavourable weather preventing further observation . In these cases we cannot ascertain DURATION ...
Page 6
... months it continued in view , while that of 1769 passed through an arc of 240 ° in longitude ; and another in 1825 , which moved extremely slow at first , ( the change of right ascension and declination in ten days being little over two ...
... months it continued in view , while that of 1769 passed through an arc of 240 ° in longitude ; and another in 1825 , which moved extremely slow at first , ( the change of right ascension and declination in ten days being little over two ...
Page 10
... month , and on the 20th the head seemed to be a cluster of small stars . Hevelius mentions something analogous in the appearance of the comet of 1661 and 1665 ; such phenomena are to be attributed to changes in the gaseous envelope of ...
... month , and on the 20th the head seemed to be a cluster of small stars . Hevelius mentions something analogous in the appearance of the comet of 1661 and 1665 ; such phenomena are to be attributed to changes in the gaseous envelope of ...
Page 24
... month , it grew rapidly less . The comet dis- covered by Dr. Galle , of Berlin , on the 25th of Janu- ary , 1840 , presented similar anomalies . Assuming that it had no light of its own , it should have appeared twice as bright on the ...
... month , it grew rapidly less . The comet dis- covered by Dr. Galle , of Berlin , on the 25th of Janu- ary , 1840 , presented similar anomalies . Assuming that it had no light of its own , it should have appeared twice as bright on the ...
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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 least distance 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 right ascension Rome Rümker Second Edition Sept September Struve sun's tail tions Tycho Brahe Ursa Major Verrier Vico