The Stars: A Study of the Universe |
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Page 28
... period of human history is but a fleeting moment , the mind will be filled with a consciousness 28 CHAPTER III CONSTELLATIONS AND STAR NAMES Study of the Constellations-The Uronometria Argentina-Naming Stars-Relation of Names to ...
... period of human history is but a fleeting moment , the mind will be filled with a consciousness 28 CHAPTER III CONSTELLATIONS AND STAR NAMES Study of the Constellations-The Uronometria Argentina-Naming Stars-Relation of Names to ...
Page 46
... period between their rising and setting . Up to the middle of the nineteenth century , the few observatories situated in the southern hemisphere were too ill - endowed to permit of their undertaking a complete census of their part of ...
... period between their rising and setting . Up to the middle of the nineteenth century , the few observatories situated in the southern hemisphere were too ill - endowed to permit of their undertaking a complete census of their part of ...
Page 76
... period . Only about three thousand stars have been accurately ob- served so long as this . In the large majority of cases the interval of observation is so short or the motion so slow that nothing can be asserted respecting the law of ...
... period . Only about three thousand stars have been accurately ob- served so long as this . In the large majority of cases the interval of observation is so short or the motion so slow that nothing can be asserted respecting the law of ...
Page 78
... form a system ; that each star is moving in a fixed orbit , performing a revolution around some far - distant centre in a period which may be hundreds of thousands or hundreds of millions of years 78 PROPER MOTIONS OF THE STARS.
... form a system ; that each star is moving in a fixed orbit , performing a revolution around some far - distant centre in a period which may be hundreds of thousands or hundreds of millions of years 78 PROPER MOTIONS OF THE STARS.
Page 85
... much larger instrument , detecting several other periodic motions . One of his most in- teresting discoveries was a periodic motion in the star Eta Aquila corresponding in period to the variations of its RADIAL MOTIONS OF THE STARS 85.
... much larger instrument , detecting several other periodic motions . One of his most in- teresting discoveries was a periodic motion in the star Eta Aquila corresponding in period to the variations of its RADIAL MOTIONS OF THE STARS 85.
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Common terms and phrases
actual Algol apical motion appear Aquila astronomers average Beta Lyræ 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...