FOURTEEN EEEKS IN DESCRIPTIIV ASTRONOMY |
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Page 13
The Appearance of the Heavens to an Observer. — The great dome of the sky
filled with glittering stars is one of the most sublime spectacles in nature. To enjoy
this fully, a night must be chosen when the air is clear, and the moon is absent.
The Appearance of the Heavens to an Observer. — The great dome of the sky
filled with glittering stars is one of the most sublime spectacles in nature. To enjoy
this fully, a night must be chosen when the air is clear, and the moon is absent.
Page 17
The Chaldean shepherds, watching their flocks by night under the open sky,
could not fail to become familiar with many of the movements of the heavenly
bodies. When Alexander took Babylon, two centuries before Christ, he found in
that city ...
The Chaldean shepherds, watching their flocks by night under the open sky,
could not fail to become familiar with many of the movements of the heavenly
bodies. When Alexander took Babylon, two centuries before Christ, he found in
that city ...
Page 30
Near it he saw three bright stars, as he considered them, which were invisible to
the naked eye. The next night he noticed that those stars had changed their
relative positions. Astonished and perplexed, he waited three days for a fair night
in ...
Near it he saw three bright stars, as he considered them, which were invisible to
the naked eye. The next night he noticed that those stars had changed their
relative positions. Astonished and perplexed, he waited three days for a fair night
in ...
Page 36
In this way it is said a celebrated optician was first led to think of there being stars
by day as well as by night. One half of the sphere is constantly visible to us ; and
so far distant are the stars, that we see just as much of the sphere as we would if
...
In this way it is said a celebrated optician was first led to think of there being stars
by day as well as by night. One half of the sphere is constantly visible to us ; and
so far distant are the stars, that we see just as much of the sphere as we would if
...
Page 47
could be built to the sun. An express-train, travelling day and night, at the rate of
thirty miles an hour, would require 341 years to reach its destination. Ten
generations would be born and would die ; the young men would become gray-
haired, ...
could be built to the sun. An express-train, travelling day and night, at the rate of
thirty miles an hour, would require 341 years to reach its destination. Ten
generations would be born and would die ; the young men would become gray-
haired, ...
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Common terms and phrases
ancients aphelion appear Aries astronomers atmosphere axis bright brilliant Canis Minor Capricornus Cassiopeia cause celestial Celestial Sphere centre Cepheus circle color comet conjunction constellation Cor Caroli dark density Describe diameter disk earth east ecliptic equal equator equinoctial figure fixed stars full moon globe heat heavenly bodies heavens Herschel horizon inclined inferior inferior conjunction inferior planet Jupiter latitude length light luminous lunar magnitude Mars mean distance Mercury meridian meteors miles moon's motion move naked eye nearly nebulae Neptune night node north pole orbit Orion parallax pass path penumbra perihelion Perseus Pisces planet Polaris precession rays revolve ring rising Saturn seasons seen shine side sidereal sidereal day solar system solstice space sphere spots summer sun's superior planet surface synodic revolution tance Taurus telescope theory tion umbra Uranus Ursa Major Ursa Minor vary velocity Venus vernal equinox visible winter Zodiac
Popular passages
Page 6 - One God, one law, one element, And one far-off divine event, To which the whole creation moves.
Page 129 - ... while the Earth remaineth seed-time and harvest, and cold and heat, and summer and winter, and day and night shall not cease.
Page 251 - Back comes the Chief in triumph. Who, in the hour of fight, Hath seen the Great Twin Brethren In harness on his right. Safe comes the ship to haven, Through billows and through gales, If once the Great Twin Brethren Sit shining on the sails.
Page 289 - A solar day is the interval between two successive passages of the sun across the meridian of any place.
Page 192 - We see it as Columbus saw America from the shores of Spain. Its movements have been felt, trembling along the far-reaching line of our analysis, with a certainty hardly inferior to that of ocular demonstration.
Page 29 - If you forgive me, I rejoice ; if you are angry, I can bear it. The die is cast, the book is written, to be read either now or by posterity, I care not which. It may well wait a century for a reader, as God has waited six thousand years for an observer.
Page 251 - Orion is represented under the figure of a hunter assaulting Taurus. He has a sword in his belt, a club in his right hand, and the skin of a lion in his left.
Page 31 - Nature, such as the seven metals, &,c., which it were tedious to enumerate, we gather that the number of planets is necessarily seven. Moreover, the satellites are invisible to the naked eye, and therefore can exercise no influence over the earth, and therefore would be useless, and therefore do not exist.
Page 119 - ... of September. On this day it slowly sweeps around the sky, with its face half hidden below the icy sea. It still continues to descend ; and, after it has entirely disappeared, it is still so near the horizon that it carries a bright twilight around the heavens in its daily circuit. As the sun sinks lower and lower, this twilight grows gradually fainter till it fades away.
Page 99 - Sadler, the celebrated aeronaut, ascended on one occasion in a balloon from Dublin, and was wafted across the Irish Channel, when, on his approach to the Welsh coast, the balloon descended nearly to the surface of the sea. By this time the sun was set, and the shades of evening began to close in. He threw out nearly all his ballast, and suddenly sprang upward to a great height, and by so doing brought his horizon to dip below the sun, producing the whole phenomenon of a western sunrise. Subsequently...