The System of the Stars |
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Page 11
... remain imperceptible without powerful optical aid , only sixty - four coming into view with the same . telescope which showed Argelander 324,000 stars . Thus access to the nebular heavens is granted conditionally upon making the very ...
... remain imperceptible without powerful optical aid , only sixty - four coming into view with the same . telescope which showed Argelander 324,000 stars . Thus access to the nebular heavens is granted conditionally upon making the very ...
Page 15
... remains there immovably for any desired time , provided that the telescope be clamped in position , and the clock set going . The inconvenience of the earth's rotation in producing a continual march - past ' of the heavenly bodies . is ...
... remains there immovably for any desired time , provided that the telescope be clamped in position , and the clock set going . The inconvenience of the earth's rotation in producing a continual march - past ' of the heavenly bodies . is ...
Page 17
... remains the same . They are bright when the ignited vapour originating them is the chief source of illumination ; dark , when a stronger light coming from behind is absorbed by its interposition . Their appearance as ' lines ' is merely ...
... remains the same . They are bright when the ignited vapour originating them is the chief source of illumination ; dark , when a stronger light coming from behind is absorbed by its interposition . Their appearance as ' lines ' is merely ...
Page 49
... remain unaltered . But the sun , if its vaporous envelope could be suddenly exchanged for that of Vega , would probably leap up to three or four times its present lustre . Its rays , no longer subdued into benignity , would have a keen ...
... remain unaltered . But the sun , if its vaporous envelope could be suddenly exchanged for that of Vega , would probably leap up to three or four times its present lustre . Its rays , no longer subdued into benignity , would have a keen ...
Page 51
... remain concentrated and pre- dominant . The corona , shorn of its rays and streamers , would appear , during eclipses , as a mere rim of vivid light ; the rosy prominences at its base would most likely have finally collapsed into a ...
... remain concentrated and pre- dominant . The corona , shorn of its rays and streamers , would appear , during eclipses , as a mere rim of vivid light ; the rosy prominences at its base would most likely have finally collapsed into a ...
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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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