Celestial Objects for Common TelescopesLongmans, Green, 1873 - 343 páginas |
Dentro del libro
Resultados 1-5 de 95
Página
... Spots on the Sun. Comptes Rendus . Hooke , Posthumous Works . Humboldt , Cosmos . Huygens , Systema Saturnium . Kepler , Opera . Lohrmann , Topographie , & c . Memoirs of Royal Astronomical Society . American Academy . Memorie del ...
... Spots on the Sun. Comptes Rendus . Hooke , Posthumous Works . Humboldt , Cosmos . Huygens , Systema Saturnium . Kepler , Opera . Lohrmann , Topographie , & c . Memoirs of Royal Astronomical Society . American Academy . Memorie del ...
Página 2
... spots , the mountains in the Moon , Jupiter's satellites , and Saturn's ring . Achromatics of larger dimensions have ... spot where the rays cross and form a picture of the sun or any celes- tial body . bination of curves , and the ...
... spots , the mountains in the Moon , Jupiter's satellites , and Saturn's ring . Achromatics of larger dimensions have ... spot where the rays cross and form a picture of the sun or any celes- tial body . bination of curves , and the ...
Página 17
... spot , it will not be all untrue ; it may secure something worth preserving , and lead to further improvement . In conclusion , may I be permitted to remind the young * Herschel II . , when about to verify his father's observations on ...
... spot , it will not be all untrue ; it may secure something worth preserving , and lead to further improvement . In conclusion , may I be permitted to remind the young * Herschel II . , when about to verify his father's observations on ...
Página 22
... spots then visible will be easily and , with due precaution , very fairly seen . And so will specks of dirt in the eye - piece ; but these may be detected by moving the tube , as the true spots alone will keep their places in the image ...
... spots then visible will be easily and , with due precaution , very fairly seen . And so will specks of dirt in the eye - piece ; but these may be detected by moving the tube , as the true spots alone will keep their places in the image ...
Página 23
... spot of 1759 ( the colour of which , he says , was ' brun foncé ' ) ; and in modern times by Chacornac and others . Howlett remarks this curve in the grouping of small spots . † A similar idea had occurred to Professor Wilson , of ...
... spot of 1759 ( the colour of which , he says , was ' brun foncé ' ) ; and in modern times by Chacornac and others . Howlett remarks this curve in the grouping of small spots . † A similar idea had occurred to Professor Wilson , of ...
Otras ediciones - Ver todas
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 nebulæ 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.