The System of the Stars |
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Page xiii
... Supposed Relation to Orbital Movement - Correspondence of Spectral Absorption 146 CHAPTER XI . DOUBLE STARS . η Early Discoveries - Numbers -Apparent Proximity - Binary Systems- Castor - a Centauri - 61 Cygni - 70 Ophiuchi and 7 ...
... Supposed Relation to Orbital Movement - Correspondence of Spectral Absorption 146 CHAPTER XI . DOUBLE STARS . η Early Discoveries - Numbers -Apparent Proximity - Binary Systems- Castor - a Centauri - 61 Cygni - 70 Ophiuchi and 7 ...
Page 35
... supposed to emanate from condensed and vividly glowing matter bathed in cooler , though still ignited , vapours . That is to say , they must be primarily unbroken from end to end of the rainbow - tinted riband formed by prismatic ...
... supposed to emanate from condensed and vividly glowing matter bathed in cooler , though still ignited , vapours . That is to say , they must be primarily unbroken from end to end of the rainbow - tinted riband formed by prismatic ...
Page 55
... supposed casual ; yet they are totally unex- plained . The origin of the lines can indeed generally be traced either to iron , calcium , or magnesium : what is perplexing is that the edges of the bands should fall just in the same ...
... supposed casual ; yet they are totally unex- plained . The origin of the lines can indeed generally be traced either to iron , calcium , or magnesium : what is perplexing is that the edges of the bands should fall just in the same ...
Page 57
... supposed compound nature of a spectrum integrating the radiation of carbon and the absorption of manganese and lead , ' and suggest- ing that the objects it characterises should be looked upon as comets on a prodigious scale , rather ...
... supposed compound nature of a spectrum integrating the radiation of carbon and the absorption of manganese and lead , ' and suggest- ing that the objects it characterises should be looked upon as comets on a prodigious scale , rather ...
Page 60
... supposed to constitute hydrogen.2 The feeble- ness of its absorptive action allows its presence in sidereal bodies to be signified to us only under the rare conditions occasioning the visibility of its direct radiations . One of these ...
... supposed to constitute hydrogen.2 The feeble- ness of its absorptive action allows its presence in sidereal bodies to be signified to us only under the rare conditions occasioning the visibility of its direct radiations . One of these ...
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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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