Celestial objects for common telescopesLongmans Green, 1873 |
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Page 47
... shadows , but a uniform brightness , in which sometimes we may indeed fancy , or perhaps more than fancy , brighter or obscurer portions , but can seldom or never rest fully satisfied of the fact ; ' and he infers , like his father ...
... shadows , but a uniform brightness , in which sometimes we may indeed fancy , or perhaps more than fancy , brighter or obscurer portions , but can seldom or never rest fully satisfied of the fact ; ' and he infers , like his father ...
Page 49
... shadows of mountains , nor Schröter's , through the fading of light towards the terminator , is satisfactory as far as night observations are concerned . In 1839 De - Vico and his assistants at Rome found a similar discrepancy of about ...
... shadows of mountains , nor Schröter's , through the fading of light towards the terminator , is satisfactory as far as night observations are concerned . In 1839 De - Vico and his assistants at Rome found a similar discrepancy of about ...
Page 50
... shadow apparently of a lofty ridge ; some of these mountains Schröter supposed to be 27 or 28 miles high , but of course with great uncertainty . Herschel I. attacked these discoveries in the Philosophical Transactions for1793 , in what ...
... shadow apparently of a lofty ridge ; some of these mountains Schröter supposed to be 27 or 28 miles high , but of course with great uncertainty . Herschel I. attacked these discoveries in the Philosophical Transactions for1793 , in what ...
Page 58
... shadows , but their nature remains unknown . Much difficulty too arises from the want of terrestrial analogies . It may be reasonably supposed that Venus or Mars , at the like distance , would be far more intel- ligible . We should ...
... shadows , but their nature remains unknown . Much difficulty too arises from the want of terrestrial analogies . It may be reasonably supposed that Venus or Mars , at the like distance , would be far more intel- ligible . We should ...
Page 73
... shadow in craters , but this he ascribes to its being thrown from a very ragged edge . Some modern observers have noted occasional want of definition in certain spots as compared with others . In a few cases M. and Schm . have noticed a ...
... shadow in craters , but this he ascribes to its being thrown from a very ragged edge . Some modern observers have noted occasional want of definition in certain spots as compared with others . In a few cases M. and Schm . have noticed a ...
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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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