Celestial Objects for Common TelescopesLongmans, Green, 1873 - 343 páginas |
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Página 27
... interior of the umbra , a feeble luminosity , marking the ' cloudy stratum ' of Dawes ( or ' cirri ' of Secchi ) ; and below both these the dark body of the Sun , forming the nucleus . This view rests on the per- spective appearance of ...
... interior of the umbra , a feeble luminosity , marking the ' cloudy stratum ' of Dawes ( or ' cirri ' of Secchi ) ; and below both these the dark body of the Sun , forming the nucleus . This view rests on the per- spective appearance of ...
Página 33
... interior mass may revolve with greater speed . Relative displacement in groups would be an interesting study , requiring neither micrometer nor clock , only careful drawing . The application of photography to solar delineation , as at ...
... interior mass may revolve with greater speed . Relative displacement in groups would be an interesting study , requiring neither micrometer nor clock , only careful drawing . The application of photography to solar delineation , as at ...
Página 37
... interior stratum is at once evident from the faintness of the limb compared with the centre of the disc . This was early remarked at Rome by Luca Valerio , called by Galileo the Archimedes of his time : it was denied by the inventor of ...
... interior stratum is at once evident from the faintness of the limb compared with the centre of the disc . This was early remarked at Rome by Luca Valerio , called by Galileo the Archimedes of his time : it was denied by the inventor of ...
Página 43
... interior to the orbit of the Earth . * It may never be granted to our readers to witness such a wonderful outburst of light in front of the Sun as was observed by Carrington and Hodgson , 1859 , Sep. I and repeated , ac- cording to ...
... interior to the orbit of the Earth . * It may never be granted to our readers to witness such a wonderful outburst of light in front of the Sun as was observed by Carrington and Hodgson , 1859 , Sep. I and repeated , ac- cording to ...
Página 63
... interiors to the grey plains , as though they had been originally deeper , but filled in subsequently with the same material ; many of them in fact bearing evident marks of having been broken down and overflowed from the outside . Their ...
... interiors to the grey plains , as though they had been originally deeper , but filled in subsequently with the same material ; many of them in fact bearing evident marks of having been broken down and overflowed from the outside . Their ...
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Términos y frases comunes
achr achromatic aperture Aquil astronomers atmosphere beautiful Binary bluish Boöt bright brighter brilliant Buffham Cassini centre Ceph Clusters colour comet constellation craters curious dark Dawes deep diameter disc Double Stars Drac dusky Earth eye-piece faint field flushed white globe greenish grey Herc Herschel Huggins interior Jupiter larger Lassell libration light lilac limb luminous lunar minute stars Moon motion naked eye nearly nebulć noticed nucleus object object-glass observers orange pair pale blue pale white pale yellow photosphere Pisc planet proper motion Red Star reflector region remarkable Right Ascension ring ruddy satellites Schm Schr Schröter Schwabe Secchi seen shadow shew side silvery white smaller smalt solar sometimes spec spots streaks surface Taur telescope topaz Triple Virg visible xIxh xvih XVIII yellowish
Pasajes populares
Página 345 - A NEW STAR ATLAS, for the Library, the School, and the Observatory, in Twelve Circular Maps (with Two Index Plates). Intended as a Companion to ' Webb's Celestial Objects for Common Telescopes.
Página 46 - Fairest of stars, last in the train of night, If better thou belong not to the dawn, Sure pledge of day, that crown'st the smiling morn With thy bright circlet, praise Him in thy sphere, While day arises, that sweet hour of prime.
Página 182 - Lift up your eyes on high, and behold who hath created these things, that bringeth out their host by number; he calleth them all by names by the greatness of his might, for that he is strong in power; not one faileth.
Página 345 - Why didn't somebody teach me the constellations, too, and make me at home in the starry heavens which are always overhead, and which I don't half know to this day?
Página 30 - I have said, he spent to satisfy himself; six more years to satisfy, and still thirteen more to convince, mankind. For thirty years never has the Sun exhibited his disc above the horizon of Dessau without being confronted by Schwabe's imperturbable telescope, and that appears to have happened, on an average, about 300 days a year.
Página 65 - Webb makes the following remarks on the rills:—"These most singular furrows pass chiefly through levels, intersect craters (proving a more recent date), reappear beyond obstructing mountains, as though carried through by a tunnel, and commence and terminate with little reference to any conspicuous feature of the neighbourhood.