The System of the Stars |
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Page xiii
... DOUBLE STARS . Nature of Light - Changes in Compound Stars - Relative Variability- Satellite of Cygni - Variable Double Stars with Sirian Spectra- Sympathy in Light - Change a test of Physical Connection - Importance of the Study of ...
... DOUBLE STARS . Nature of Light - Changes in Compound Stars - Relative Variability- Satellite of Cygni - Variable Double Stars with Sirian Spectra- Sympathy in Light - Change a test of Physical Connection - Importance of the Study of ...
Page xiv
... Double Stars - Cluster about κ Crucis- Præsepe - Dynamical Equilibrium of Globular Clusters - Radiated Ap- pearance- - Centauri and 47 Toucani - Dark Lanes - The Great Cluster in Hercules -- Nebular Affinities of Clusters . 234 CHAPTER ...
... Double Stars - Cluster about κ Crucis- Præsepe - Dynamical Equilibrium of Globular Clusters - Radiated Ap- pearance- - Centauri and 47 Toucani - Dark Lanes - The Great Cluster in Hercules -- Nebular Affinities of Clusters . 234 CHAPTER ...
Page xviii
... DOUBLE STARS PHOTOGRAPHED AT PARIS ( from Mouchez's Pho- tographie Astronomique ' ) 30. ORBITS OF THE COMPONENTS OF Y VIRGINIS . 31. ORBITS OF THE COMPONENTS oF a CENTAURI 32. ORBITS OF SIRIUS AND ITS COMPANION 134 138 140 . 143 . 161 ...
... DOUBLE STARS PHOTOGRAPHED AT PARIS ( from Mouchez's Pho- tographie Astronomique ' ) 30. ORBITS OF THE COMPONENTS OF Y VIRGINIS . 31. ORBITS OF THE COMPONENTS oF a CENTAURI 32. ORBITS OF SIRIUS AND ITS COMPANION 134 138 140 . 143 . 161 ...
Page 15
... double stars are executed , and some stellar parallaxes have been determined in this way . But for the latter purpose , the heliometer ' is the more appropriate instrument . Its designation is a misnomer , or rather represents the ...
... double stars are executed , and some stellar parallaxes have been determined in this way . But for the latter purpose , the heliometer ' is the more appropriate instrument . Its designation is a misnomer , or rather represents the ...
Page 21
... double- refracting prism , the difference of original light - power was easily deduced . The method is of wider applicability than that by extinctions ; none the less , the wedge photometer , ' in the form given to it by Professor ...
... double- refracting prism , the difference of original light - power was easily deduced . The method is of wider applicability than that by extinctions ; none the less , the wedge photometer , ' in the form given to it by Professor ...
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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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