An Introduction to Astronomy ...J. Nunn, 1816 - 428 pages |
From inside the book
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Page 103
... Poles ; and in every other situation , it varies in a certain proportion to the latitude of the place ; which is occasioned by the oblate sphe- roidical figure of the earth , as will be noticed in a future letter . This difference ...
... Poles ; and in every other situation , it varies in a certain proportion to the latitude of the place ; which is occasioned by the oblate sphe- roidical figure of the earth , as will be noticed in a future letter . This difference ...
Page 127
... pole , it would occasion a constant elevation both there and at the opposite one , and a constant depression at the equator ; so that as the sun and moon gra- dually decline from the equator , they lose their effect , and the tides ...
... pole , it would occasion a constant elevation both there and at the opposite one , and a constant depression at the equator ; so that as the sun and moon gra- dually decline from the equator , they lose their effect , and the tides ...
Page 130
... pole ; and that which is directed towards the most southern point , the south pole . So that they are diametrically opposite to each other , and always preserve the same relative situation . " Two poles turn round the globe , one seen ...
... pole ; and that which is directed towards the most southern point , the south pole . So that they are diametrically opposite to each other , and always preserve the same relative situation . " Two poles turn round the globe , one seen ...
Page 131
... poles themselves ; the heat here being almost as intense as the cold is there ; for which reason , the ancients imagined the ( ƒ ) The nearest approach towards the north pole was that made by Captain Phipps , in the year 1773 , when he ...
... poles themselves ; the heat here being almost as intense as the cold is there ; for which reason , the ancients imagined the ( ƒ ) The nearest approach towards the north pole was that made by Captain Phipps , in the year 1773 , when he ...
Page 132
... pole are not wholly desolate ; so that the following de- scription of those parts must be considered as more ... poles complain Of endless winter , and perpetual rain : Betwixt th ' extremes , two happier climates hold The temper that ...
... pole are not wholly desolate ; so that the following de- scription of those parts must be considered as more ... poles complain Of endless winter , and perpetual rain : Betwixt th ' extremes , two happier climates hold The temper that ...
Common terms and phrases
ancient angle appear astronomers axis bodies called celestial centre Ceres circle clock comets dark degrees determined diameter disc discovered discoveries diurnal diurnal rotation doctrine earth eclipse epact equal equator fall figure fixed stars force globe gravity greater greatest half heavens hemisphere horizon hundred idea imagined instrument Jupiter Kepler latitude less Libra light longitude lunar lunar eclipse magnitude manner measure Mercury meridian method millions of miles minutes moon moon's motion move round nature Newton night nodes noon north pole northern northern hemisphere observed occasioned orbit parallax pass perceive perihelion phænomena phænomenon philosophers planets pole reckoned revolution revolves round rotation round the earth round the sun satellites Saturn seconds seen situation solar southern constellation space sun and moon sun's supposed surface tance telescope things thousand tion toises twelve Tycho Brahe Uranus Venus Vesta Villejuif whilst zenith
Popular passages
Page 58 - Or, if they list to try Conjecture, he his fabric of the Heavens Hath left to their disputes — perhaps to move His laughter at their quaint opinions wide Hereafter, when they come to model Heaven, And calculate the stars; how they will wield The mighty frame; how build, unbuild, contrive To save appearances; how gird the Sphere With Centric and Eccentric scribbled o'er, Cycle and Epicycle, orb in orb.
Page 289 - Or of the eternal co-eternal beam, May I express thee unblamed ? since God is light, And never but in unapproached light Dwelt from eternity, dwelt then in thee, Bright effluence of bright essence increate. Or hear'st thou rather pure ethereal stream, Whose fountain who shall tell?
Page 332 - He scarce had ceased, when the superior fiend Was moving toward the shore: his ponderous shield, Ethereal temper, massy, large, and round, Behind him cast; the broad circumference Hung on his shoulders like the moon, whose orb Through optic glass the Tuscan artist views, At evening, from the top of Fesole, Or in Valdarno, to descry new lands, Rivers, or mountains, in her spotty globe.
Page 382 - Less than archangel ruined, and the excess Of glory obscured ; as when the sun, new risen, Looks through the horizontal misty air Shorn of his beams, or from behind the moon, In dim eclipse, disastrous twilight sheds On half the nations, and with fear of change Perplexes monarchs.
Page 294 - Horrid with frost and turbulent with storm, Blows autumn, and his golden fruits, away : Then melts into the spring : soft spring, with breath Favonian, from warm chambers of the south, Recalls the first.
Page 289 - Or hear'st thou rather pure ethereal stream, Whose fountain who shall tell? Before the sun, Before the heavens thou wert, and at the voice Of God, as with a mantle didst invest The rising world of waters dark and deep, Won from the void and formless infinite.
Page 289 - His mirror, with full face borrowing her light From him, for other light she needed none In that...
Page 401 - This Being governs all things, not as the Soul of the World, but as Lord over all; and, on account of his dominion, he is wont to be called Lord God, or Universal Ruler.
Page 400 - This most beautiful System of the Sun, Planets, and Comets, could only proceed from the counsel and dominion of an intelligent and powerful Being.
Page 76 - Works in the secret deep; shoots, steaming, thence The fair profusion that o'erspreads the Spring: Flings from the sun direct the flaming day; Feeds every creature ; hurls the tempest forth ; And, as on earth this grateful change revolves, With transport touches all the springs of life.