The System of the Stars |
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Page xiv
... THE GREAT NEBULE . First Observations of the Andromeda Nebula - Bond's Canals - Roberts's Photographs - Constitution and Real Shape of the Nebula - Analogy • 251 with a Star - Group - Other Elliptical Nebula - xiv THE SYSTEM OF THE STARS.
... THE GREAT NEBULE . First Observations of the Andromeda Nebula - Bond's Canals - Roberts's Photographs - Constitution and Real Shape of the Nebula - Analogy • 251 with a Star - Group - Other Elliptical Nebula - xiv THE SYSTEM OF THE STARS.
Page 10
... observations . He was acquainted in 1716 with six luminous spots or patches , which discover themselves only by the telescope , and appear to the naked eye like small fixed stars ; but in reality are nothing else but the light coming ...
... observations . He was acquainted in 1716 with six luminous spots or patches , which discover themselves only by the telescope , and appear to the naked eye like small fixed stars ; but in reality are nothing else but the light coming ...
Page 19
... observations concerned are of great delicacy , and can only be made with a powerful telescope , collecting light suffi- cient to bear a considerable amount of dispersion . Their object is to measure the minute displacements of known ...
... observations concerned are of great delicacy , and can only be made with a powerful telescope , collecting light suffi- cient to bear a considerable amount of dispersion . Their object is to measure the minute displacements of known ...
Page 33
... observations . But for its progress , something more is required . A few scattered items of know- ledge do not constitute a science . The word implies the suffu- sion of a subject with intellectual light derived from large in- ferences ...
... observations . But for its progress , something more is required . A few scattered items of know- ledge do not constitute a science . The word implies the suffu- sion of a subject with intellectual light derived from large in- ferences ...
Page 44
... observations at the edge of the sun show them always brilliant in the chromosphere , and often extending to the very summits of its flame - like extensions . During 1 Young , Nature , vol . xxiii . p . 281 . the total eclipse of May 17 ...
... observations at the edge of the sun show them always brilliant in the chromosphere , and often extending to the very summits of its flame - like extensions . During 1 Young , Nature , vol . xxiii . p . 281 . the total eclipse of May 17 ...
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Common terms and phrases
61 Cygni 70 Ophiuchi absorption Aldebaran Algol Andromeda Andromeda nebula appear Arcturus Argûs Astr astronomy atmospheric bands Betelgeux blue bodies bright lines brilliant Cassiopeia Catalogue centre century cluster colour comets condensation Cygni dark detected distance double stars effect extent faint galactic Harvard heavens heliometer hence Huggins hydrogen hydrogen lines Ibid interval less light Lockyer luminous lustre Lyræ magnitude star mass maximum measured ment miles Milky Mira Monthly Notices movements nearly nebula ninth magnitude objects observations Observatory Ophiuchus orbit Orion Orion nebula pair parallax peculiarities period Phil photographic photosphere planetary plates Pleiades present Professor proper motion rays red stars refractor remarkable remote satellite Schjellerup seems sidereal Sir John Herschel Sirian Sirius sixth magnitude small stars solar southern space spectra spectroscopic spectrum stellar Struve sun's telescope tion Trans variable stars velocity visible visual Vogel yellow
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