The System of the Stars |
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Page 8
... perhaps very greatly in size and splendour the body we depend upon for vital neces- sities . Now each of these millions of suns challenges the closest personal attention ; no single one of them is exactly like any other , and their ...
... perhaps very greatly in size and splendour the body we depend upon for vital neces- sities . Now each of these millions of suns challenges the closest personal attention ; no single one of them is exactly like any other , and their ...
Page 18
... perhaps the greatest of his many services to science . Through the link thus established , geometrical and physical astronomy have been placed in closer mutual relations than could have been thought possible beforehand 18 THE SYSTEM OF ...
... perhaps the greatest of his many services to science . Through the link thus established , geometrical and physical astronomy have been placed in closer mutual relations than could have been thought possible beforehand 18 THE SYSTEM OF ...
Page 19
... perhaps never , really constant . Periodical fluctuations are in many cases obvious ; secular variations are suspected . The suspicion can be verified only by precise light - measurements repeated at long intervals . Their application ...
... perhaps never , really constant . Periodical fluctuations are in many cases obvious ; secular variations are suspected . The suspicion can be verified only by precise light - measurements repeated at long intervals . Their application ...
Page 22
... perhaps for the last time in such a comprehensive research - not from any intrinsic incapacity for even more extended usefulness , but because better means are at hand . The invention of the telescope itself does not mark an epoch more ...
... perhaps for the last time in such a comprehensive research - not from any intrinsic incapacity for even more extended usefulness , but because better means are at hand . The invention of the telescope itself does not mark an epoch more ...
Page 23
... perhaps before long be pursued by methods and with results peculiar to itself . The penetration of space has , indeed , even thus limits . It is unlikely , for instance , that external galaxies ( if such there be ) will ever reveal ...
... perhaps before long be pursued by methods and with results peculiar to itself . The penetration of space has , indeed , even thus limits . It is unlikely , for instance , that external galaxies ( if such there be ) will ever reveal ...
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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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