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according appear astronomers atmosphere attraction axis believe bodies bright called cause celestial centre changes CHAPTER clouds comet constellations dark described diameter direction disc discovered discoveries distance earth eclipse fall figure fixed stars four further give given globe Harvest Moons head heat heaven Herschel horizon hour hundred imagined Jupiter larger least less light living look Lord Rosse luminous magnitude means Mercury miles Milky millions minutes month moon motion mountains move naked eye nature nebules night object observed opening orbit PARLEY passes period planets present QUESTIONS remarkable represented respect revolving rising round the sun seems seen shallow shining side Sir William Solar System sometimes space sun's supposed surface telescope tell things thought thousand told turn various visible whole zodiac
Page 132 - It is a time-piece that advances very regularly near four minutes a day, and no other group of stars exhibits, to the naked eye, an observation of time so easily made. How often have we heard our guides exclaim in the savannahs of Venezuela, or in the desert extending from Lima to Truxillo, ' Midnight is past, the Cross begins to bend...
Page 17 - ... a degree of brightness about as strong as that with which such a coal would be seen to glow in faint daylight.
Page ix - Seized in thought, On Fancy's wild and roving wing I sail, From the green borders of the peopled earth, And the pale moon, her duteous, fair attendant ; From solitary Mars ; from the vast orb Of Jupiter, whose huge gigantic bulk Dances in ether like the lightest leaf...
Page 128 - Orpheus with his lute made trees, And the mountain tops that freeze, Bow themselves when he did sing ; To his music plants and flowers Ever sprung, as sun and showers There had made a lasting spring.
Page 266 - The telescope rests on a universal joint, placed on masonry, about 6 feet below the ground, and is elevated or depressed by a chain and windlass; and, although it weighs about 15 tons, the instrument is raised by two men with great facility. Of course, it is counterpoised in every direction. " The observer, when at work, stands in one of four galleries, the three highest of which are drawn out from the western wall...
Page 13 - ... below, seem to bid defiance to the laws of gravitation. Around the base of these frightful eminences, are strewed numerous loose and unconnected fragments, which time seems to have detached from their parent mass ; and when we examine the rents and ravines which accompany the over-hanging cliffs, we expect every moment that they are to be torn from their base, and that the process of destructive separation which we had only contemplated in its effects, is about to be exhibited before us in tremendous...
Page 251 - Centauri and the Cross ; while to the north it fades away pale and dim, and is in comparison hardly traceable. I think it is impossible to view this splendid zone, with the astonishingly rich and...
Page 251 - ... almost vacant parts of its general mass, and that eccentrically, so as to be much nearer to the parts about the Cross than to that diametrically opposed to it.
Page 132 - The two great stars which mark the summit and the foot of the cross, having nearly the same right ascension, it follows hence, that the constellation is almost perpendicular, at the moment when it passes the meridian. This circumstance is known to every nation that lives beyond the tropics, or in the southern hemisphere.
Page 133 - Lataniers, conversed together for the last time ; and where the old man, at the sight of the Southern Cross, warns them that it is time to separate !"— DE HUMBOLDT'S Travels.