The Stars: A Study of the UniverseG. P. Putnam's Sons, 1906 - 333 pages |
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Expressions et termes fréquents
61 Cygni actual Algol apical motion appear astronomers average Beta Lyræ binary systems body bright lines brighter stars brightest brilliancy Campbell catalogue celestial sphere centre century chapter cluster colour components conclusion constellation dark lines density determined direction distance double stars earth eclipses emitted equal 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 Pegasi period photographic Pickering planet plates position proper motion question R. A. Dec radial motion radius 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 variable stars variation velocity visible wave-length zone
Fréquemment cités
Page 266 - To God's eternal house direct the way ; A broad and ample road, whose dust is gold, And pavement stars, as stars to thee appear, Seen in the galaxy, that milky way Which nightly, as a circling zone, thou seest Powder'd with stars.
Page 228 - 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 288 - 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 38 - Canst thou bring forth Mazzaroth in his season? or canst thou guide Arcturus with his sons?
Page 28 - 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 pleased : now glowed the firmament With living sapphires : Hesperus, that led The starry host, rode brightest, till the moon, Rising in clouded majesty, at length, Apparent queen, unveiled her peerless light, And o'er the dark her silver mantle threw.
Page 56 - Remov'd far from our humane sight: But if we stedfast looke, We shall discerne In it as in some holy booke, How man may heavenly knowledge learne.
Page 125 - 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 180 - There is one phenomenon among the fixed stars worthy of mention which, so far as I know, has hitherto been noticed by no one, and indeed cannot be well observed except with large telescopes. In the sword of Orion are three stars quite close together. In 1656, as I chanced to be viewing the middle one of these with the telescope, instead of a single star, twelve showed themselves (a not uncommon circumstance). Three of these almost touched each other, and, with four others, shone through a nebula,...
Page 56 - Almighty's mysteries to read In the large volumes of the skies. For the bright firmament Shoots forth no flame So silent, but is eloquent In speaking the Creator's name. No unregarded star Contracts its light Into so small a character, Removed far from our human sight, But if we steadfast look, We shall discern In it, as in some holy book, How man may heavenly knowledge learn.
Page 229 - Otherwise stated, do we see stars on the boundary of the universe ? Secondly, granting the universe to be finite, what is the arrangement of the stars in space ? Especially, what is the relation of the galaxy to the other stars ? In what sense, if any, can the stars be said to form a permanent system ? Do the stars which form the Milky Way belong to a different system from the other stars, or are the latter a part of one universal system ? Thirdly, what is the duration of the universe in time ? Is...