An Introduction to Astronomy ...J. Nunn, 1816 - 428 էջ |
From inside the book
Արդյունքներ 44–ի 1-ից 5-ը:
Էջ 19
... diameter . And ac- cordingly we find , that these trifling protuberances occasion no irregularities in the shadow of the earth , during the time of a lunar eclipse ; but that the circumference of it always appears to be even and regular ...
... diameter . And ac- cordingly we find , that these trifling protuberances occasion no irregularities in the shadow of the earth , during the time of a lunar eclipse ; but that the circumference of it always appears to be even and regular ...
Էջ 33
... diameter three thousand one hundred and twenty ; and in his course round the sun , he moves at the rate of a hundred and five thousand miles an hour . This planet , when viewed , in different positions , with a good telescope , seems to ...
... diameter three thousand one hundred and twenty ; and in his course round the sun , he moves at the rate of a hundred and five thousand miles an hour . This planet , when viewed , in different positions , with a good telescope , seems to ...
Էջ 34
... diameter is seven thou- sand seven hundred miles , and her diurnal rota- tion on her axis , is performed in 23 hours and 21 minutes . When this planet appears to the west of the sun , she rises before him in the morning , and is called ...
... diameter is seven thou- sand seven hundred miles , and her diurnal rota- tion on her axis , is performed in 23 hours and 21 minutes . When this planet appears to the west of the sun , she rises before him in the morning , and is called ...
Էջ 36
... diameter and diurnal rotation have not been at present as- certained . Ceres is the next higher planet , in our system ; which was first discovered by Piazzi , of Palermo , Jan. 1st , 1801. Its mean distance is nearly the same as that ...
... diameter and diurnal rotation have not been at present as- certained . Ceres is the next higher planet , in our system ; which was first discovered by Piazzi , of Palermo , Jan. 1st , 1801. Its mean distance is nearly the same as that ...
Էջ 37
... diameter is com- puted to be about seventy - six thousand miles ; but , on account of his immense distance , and the deficiency of light occasioned by such a remote situation , the time of his diurnal rotation upon his axis was formerly ...
... diameter is com- puted to be about seventy - six thousand miles ; but , on account of his immense distance , and the deficiency of light occasioned by such a remote situation , the time of his diurnal rotation upon his axis was formerly ...
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
Սիրված հատվածներ
Էջ 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.
Էջ 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?
Էջ 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.
Էջ 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.
Էջ 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.
Էջ 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.
Էջ 289 - His mirror, with full face borrowing her light From him, for other light she needed none In that...
Էջ 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.
Էջ 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.
Էջ 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.