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 7
... find . The same comet may put on at different times of its visi- bility , every variety of figure and general appearance from the dim nebulous spot hardly discernible in the telescope to the ' cometa terribilis , ' ' horrendæ mag ...
... find . The same comet may put on at different times of its visi- bility , every variety of figure and general appearance from the dim nebulous spot hardly discernible in the telescope to the ' cometa terribilis , ' ' horrendæ mag ...
Page 9
... find twenty - three were white , twenty bluish , four red or reddish - yellow , and two greenish . Planetary nuclei in comets , are of rare occurrence , and it is pretty certain that they consist of nothing more than nebulous matter in ...
... find twenty - three were white , twenty bluish , four red or reddish - yellow , and two greenish . Planetary nuclei in comets , are of rare occurrence , and it is pretty certain that they consist of nothing more than nebulous matter in ...
Page 17
... find the dimensions of the sun , moon , and planets . But as it never happens that the borders of the nebulosity are sharply defined , and but rarely so as regards the nucleus , our determinations of their real dimensions are ...
... find the dimensions of the sun , moon , and planets . But as it never happens that the borders of the nebulosity are sharply defined , and but rarely so as regards the nucleus , our determinations of their real dimensions are ...
Page 27
... with these elements we can find for any parti- cular time , the comet's distance from the earth , and its situation in our heavens , and , in fact , trace its C 2 course through the system . The major - axis in THE COMETS . 27.
... with these elements we can find for any parti- cular time , the comet's distance from the earth , and its situation in our heavens , and , in fact , trace its C 2 course through the system . The major - axis in THE COMETS . 27.
Page 32
... find what it would be at the beginning of June . The interval is divided . into certain equal periods , and for the middle day of each period , the diurnal variation of every element of the comet's orbit is computed separately for each ...
... find what it would be at the beginning of June . The interval is divided . into certain equal periods , and for the middle day of each period , the diurnal variation of every element of the comet's orbit is computed separately for each ...
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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