Celestial objects for common telescopesLongmans Green, 1873 |
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Page viii
... called into action . But a serious obstacle remains to the inexperienced possessor . How is he to use his telescope in a really improving way ? What is he to look for ? And how is he to look for it ? For want of an answer many a good ...
... called into action . But a serious obstacle remains to the inexperienced possessor . How is he to use his telescope in a really improving way ? What is he to look for ? And how is he to look for it ? For want of an answer many a good ...
Page 6
... called the Huygenian or negative eye - piece the positive or Ramsden eye - piece has a flatter field , but is not , like the other , achromatic . The interposition of a combination called a Barlow lens raises the power with little loss ...
... called the Huygenian or negative eye - piece the positive or Ramsden eye - piece has a flatter field , but is not , like the other , achromatic . The interposition of a combination called a Barlow lens raises the power with little loss ...
Page 18
... called them into being . Such is eminently the right use of the Telescope —as an instrument , not of mere amusement or curiosity , but of a more extensive knowledge of the works of the Almighty . So new an aspect as has thus been given ...
... called them into being . Such is eminently the right use of the Telescope —as an instrument , not of mere amusement or curiosity , but of a more extensive knowledge of the works of the Almighty . So new an aspect as has thus been given ...
Page 37
... called by Galileo the Archimedes of his time : it was denied by the inventor of the telescope , but may be easily perceived when the image is cast on paper , and its effect is evident in the Kew , and especially the Rutherfurd photo ...
... called by Galileo the Archimedes of his time : it was denied by the inventor of the telescope , but may be easily perceived when the image is cast on paper , and its effect is evident in the Kew , and especially the Rutherfurd photo ...
Page 60
... generic title of ' seas , ' though he altered their designations . The reform attempted by G. , who would have had them called ' surfaces , ' has never taken effect . the Earth . * Every gradation of cliff and ridge 60 THE SOLAR SYSTEM .
... generic title of ' seas , ' though he altered their designations . The reform attempted by G. , who would have had them called ' surfaces , ' has never taken effect . the Earth . * Every gradation of cliff and ridge 60 THE SOLAR SYSTEM .
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Common terms and phrases
achr achromatic aperture astronomers atmosphere beautiful Binary bluish Boöt bright brighter brilliant Buffham centre Ceph Clusters colour comet constellation craters Crown 8vo curious dark Dawes diameter disc Double Stars Drac dusky Earth Edition eye-piece faint field flushed white grey Herc Herschel Huggins interior JOHN TYNDALL Jupiter Lassell libration light lilac limb luminous lunar minute stars Moon naked eye nearly Nebulæ noticed nucleus object object-glass observers orange pair pale blue pale white pale yellow photosphere Pisc planet Post 8vo proper motion Red Star reflector region remarkable revised Right Ascension ring ruddy satellites Schm Schr Schröter Schwabe Secchi seen shadow shew side smalt solar sometimes spec spots streaks Taur telescope topaz Triple visible vols Woodcuts XIVh xIxh xvih XVIII yellowish
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