Planetary and Stellar Studies: Or, Short Papers on the Planets, Stars, and NebulaeRoper and Drowley, 1888 - 264 pages |
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Common terms and phrases
4th magnitude 61 Cygni according Admiral Smyth Al-Sufi Algol Algol type angle appearance Argelander axis Beta binary star bright star brighter brilliancy Cassiopeia Centauri centre Cephei cluster colour computed Coronæ dark diameter disc double star earth earth's orbit ecliptic ellipse faint fainter find a period fixed star Gegenschein Harvard heavens Herschel inclination Jupiter Lalande Leonis Liverpool Astronomical Society Mars mean distance measures Mercury Messier Milky millions of miles minutes minutes of arc moon naked eye nearly nebulæ Neptune Nova number of stars object Observatory observed Omega Centauri Ophiuchi Orionis parallax planet poles position possibly probably proper motion reddish remarkable revolve round ring rotation round the sun satellites Saturn Schönfeld seems seen semi-axis major Sirius small stars space spectrum spots stellar stellar magnitude Struve sun's mass supposed temporary star theory tion Uranus variable stars variation Venus visible yellow yellowish Zodiacal Light
Popular passages
Page 25 - For a breeze of morning moves, And the planet of Love is on high, Beginning to faint in the light that she loves On a bed of daffodil sky, To faint in the light of the sun she loves, To faint in his light, and to die.
Page 49 - A man placed on one of them would spring with ease 60 feet high, and sustain no greater shock in his descent than he does on the earth from leaping a yard. On such planets giants might exist; and those enormous animals, which on earth require the buoyant power of water to counteract their weight, might there be denizens of the land.
Page 50 - Astraeans — the People of the World — the Metropolitans of Space — are degraded in a moment into a set of Villagers. What a fall is there, my countrymen, for a respectable set of worlders, who happened not to possess sufficient self-esteem to bear them up against it ! What an overturn to all...
Page 5 - This scale of beings ; holds a rank, which lost Would break the chain, and leave behind a gap Which nature's self would rue. Almighty Being, Cause and support of all things, can I view These objects of my wonder ; can I feel These fine sensations, and not think of Thee ? Thou who dost through th...
Page 108 - The whole of this great nebula, as far as lies within the power of my instrument, emits light which is identical in its characters ; the light from one part differs from the light of another in intensity alone.
Page 221 - ... 290, 330, 352). Heis, on some occasions (H. 22, 23), found that the usual comparative sharpness of the lower boundary was wanting. Lewis states as a general rule that the southern side is more sharply defined and more nearly parallel with the ecliptic (Ls. 438). He adds the interesting remark that the axis of greatest brightness lies south of the axis of symmetry. It is obvious that the increase of atmospheric absorption with zenith distance will accelerate the diminution of light near the lower...
Page 228 - ... pointing to the same conclusion was found in the difference of their spectra. In the early part of the evening, while both the zodiacal cone and the aurora were at their brightest, an opportunity was taken to compare their spectra. The observations were made with Eaton's direct vision spectroscope. The zodiacal cone gave a faint, short, continuous spectrum, brightest near its least refrangible end.
Page 5 - Contemplated as one grand whole, astronomy is the most beautiful monument of the human mind ; the noblest record of its intelligence.
Page 147 - As it decreased in size, it varied in colour at first, its light was white and extremely bright ; it then became yellowish ; afterwards of a ruddy colour like Mars ; and finished with a pale livid white resembling the colour of Saturn.