The Stars: A Study of the Universe |
From inside the book
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Page 31
... celestial sphere . They were so drawn that the smallest possible change should be made in the notation of the conspicuous . stars ; that is , the rule was that , if possible , each bright star should be in the same constellation as ...
... celestial sphere . They were so drawn that the smallest possible change should be made in the notation of the conspicuous . stars ; that is , the rule was that , if possible , each bright star should be in the same constellation as ...
Page 35
... celestial sphere , different astronomers have placed the lines differently . One of the regions in which this is especially true is in the neighbourhood of the north pole , where some astronomers place stars in the constellation Cepheus ...
... celestial sphere , different astronomers have placed the lines differently . One of the regions in which this is especially true is in the neighbourhood of the north pole , where some astronomers place stars in the constellation Cepheus ...
Page 38
... celestial sphere , with such other particulars as may be necessary to attain the object of the catalogue . If the latter includes only the more conspicuous stars , it is common to add the name of each star that has one ; if none is ...
... celestial sphere , with such other particulars as may be necessary to attain the object of the catalogue . If the latter includes only the more conspicuous stars , it is common to add the name of each star that has one ; if none is ...
Page 39
... celestial sphere in two opposite points , known as the north and south celestial poles . The equator will then be a great circle 90 ° from each pole . Then as meridians . are drawn from pole to pole on the earth , cutting the equator at ...
... celestial sphere in two opposite points , known as the north and south celestial poles . The equator will then be a great circle 90 ° from each pole . Then as meridians . are drawn from pole to pole on the earth , cutting the equator at ...
Page 40
... celestial meridians . Allowing for this motion , however , the system is the ... celestial pole to the other through the vernal equinox . Then to define the ... sphere in twenty - four hours . The rea- son of this is that astronomers ...
... celestial meridians . Allowing for this motion , however , the system is the ... celestial pole to the other through the vernal equinox . Then to define the ... sphere in twenty - four hours . The rea- son of this is that astronomers ...
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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...