The System of the Stars |
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Page xx
... regarded as provisionally determined . With improved apparatus , evidence has been obtained at Potsdam of variability in the movement of Rigel , due doubtless to orbital revolution . LIBRARY OF THE UNIVERSITY OF CALIFORNIA THE SYSTEM OF ...
... regarded as provisionally determined . With improved apparatus , evidence has been obtained at Potsdam of variability in the movement of Rigel , due doubtless to orbital revolution . LIBRARY OF THE UNIVERSITY OF CALIFORNIA THE SYSTEM OF ...
Page 35
... regarded as an essential feature of the suns of space . But such a struc- ture can only be formed in an incandescent atmosphere , the action of which modifies , more or less powerfully , the light emitted from it . The spectroscope can ...
... regarded as an essential feature of the suns of space . But such a struc- ture can only be formed in an incandescent atmosphere , the action of which modifies , more or less powerfully , the light emitted from it . The spectroscope can ...
Page 61
... regarded as in any sense discharged by such a body as Mira Ceti . But the stage of Mira is only reached by insensible gradations . At the other end of the scale we meet radiating centres , the efficiency of which is not perceptibly ...
... regarded as in any sense discharged by such a body as Mira Ceti . But the stage of Mira is only reached by insensible gradations . At the other end of the scale we meet radiating centres , the efficiency of which is not perceptibly ...
Page 70
... regarded as a common feature of the Mira class of variables . It has also been detected through photographic researches executed in the southern hemisphere by delegates from Harvard College , in ʼn Argûs , distinguished for ...
... regarded as a common feature of the Mira class of variables . It has also been detected through photographic researches executed in the southern hemisphere by delegates from Harvard College , in ʼn Argûs , distinguished for ...
Page 79
... regarded as sui generis , or whether they will prove to be the first known members of a new class . Several coincidences , Proc . R. Society , vol . xlvi . p . 41 . some approximate , some exact , between the ultra - GASEOUS STARS AND ...
... regarded as sui generis , or whether they will prove to be the first known members of a new class . Several coincidences , Proc . R. Society , vol . xlvi . p . 41 . some approximate , some exact , between the ultra - GASEOUS STARS AND ...
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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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