The Stars: A Study of the Universe |
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Page 4
... astronomers of the past would not be satisfied without their knowing something of what was to be seen south of the ... astronomer up to the present time . In 1834-38 Sir John Herschel made a special voyage to the Cape of Good Hope ...
... astronomers of the past would not be satisfied without their knowing something of what was to be seen south of the ... astronomer up to the present time . In 1834-38 Sir John Herschel made a special voyage to the Cape of Good Hope ...
Page 10
... astronomers naturally occupied themselves with photographing celestial bodies by the light which they emitted . For ... astronomer , or astrophysicist as he now calls himself , can study and measure ΙΟ REVIEW OF RECENT PROGRESS.
... astronomers naturally occupied themselves with photographing celestial bodies by the light which they emitted . For ... astronomer , or astrophysicist as he now calls himself , can study and measure ΙΟ REVIEW OF RECENT PROGRESS.
Page 14
... astronomers from the begin- ning of their work to the present time . Keeping these details in mind , we can profitably proceed to the consideration of the general conclusions to be drawn from them . CHAPTER II MAGNITUDES OF THE STARS ...
... astronomers from the begin- ning of their work to the present time . Keeping these details in mind , we can profitably proceed to the consideration of the general conclusions to be drawn from them . CHAPTER II MAGNITUDES OF THE STARS ...
Page 16
... astronomers are obliged to con- tent themselves , in the first place , with determina- tions of the actual amount of light that the various stars send to us , or their apparent brilliancy , without regard to their distance or actual ...
... astronomers are obliged to con- tent themselves , in the first place , with determina- tions of the actual amount of light that the various stars send to us , or their apparent brilliancy , without regard to their distance or actual ...
Page 18
... astronomers , while adhering to the general system which has come down to them from ancient times , have sought to give it greater defin- Careful study showed that the actual amount of light corresponding to the Magnitude . different ...
... astronomers , while adhering to the general system which has come down to them from ancient times , have sought to give it greater defin- Careful study showed that the actual amount of light corresponding to the Magnitude . different ...
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Common terms and phrases
actual Algol apical motion appear Aquila astronomers average Beta Lyrę binary systems body bright lines brighter stars brightest brilliancy catalogue celestial sphere centre century chapter cluster colour components conclusion constellation dark lines density determined direction distance double stars earth eclipses emitted equal Eta Aquila fact faint fainter follows galaxy greater Harvard Observatory heavens Herschel hydrogen hydrogen lines increase Kapteyn latter less Lick Observatory limit lucid stars mass measured Milky naked eye nearly nebula number of stars observations Observatory orbit Orion parallactic motion parallax period photographic Pickering planet pole position proper motion question R. A. Dec radial motion ratio remarkable revolving round right ascension seems seen Sirius sixth magnitude solar apex space spectra spectroscope spectroscopic binary spectrum square degrees star-density stellar supposed surface telescope temperature tion tude UNIVERS universe variable stars variation velocity visible wave-length zone
Popular passages
Page 284 - How charming is divine Philosophy! Not harsh and crabbed, as dull fools suppose, But musical as is Apollo's lute, And a perpetual feast of nectared sweets, Where no crude surfeit reigns.
Page 224 - Tis ours to trace him only in our own. He, who through vast immensity can pierce, See worlds on worlds compose one universe, Observe how system into system runs, What other planets circle other suns, What varied being peoples every star, May tell why Heaven has made us as we are.
Page 333 - The book is cleverly written and is one of the best works of its kind ever put before the public. It will be interesting to all readers, and especially to those interested in the study of science.
Page 26 - Now came still evening on, and twilight grey Had in her sober livery all things clad; Silence accompanied; for beast and bird, They to their grassy couch, these to their nests Were slunk, all but the wakeful nightingale ; She all night long her amorous descant sung , Silence was...
Page 121 - It may be glorious to write Thoughts that shall glad the two or three High souls, like those far stars that come in sight Once in a century ; — But better far it is to speak One simple word, which now and then Shall waken their free nature in the weak And friendless sons of men...
Page 262 - To God's eternal house direct the way A broad and ample road, whose dust is gold, And pavement stars...