Fourteen Weeks in Descriptive Astronomy |
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Page 15
... heavens , is a whitish , vapory belt - the Milky Way . This is composed of multi- tudes of millions of suns- of which our own sun itself is one - so far removed from us that their light mingles , and makes only a fleecy whiteness . This ...
... heavens , is a whitish , vapory belt - the Milky Way . This is composed of multi- tudes of millions of suns- of which our own sun itself is one - so far removed from us that their light mingles , and makes only a fleecy whiteness . This ...
Page 18
... the gods - the ears of man being too gross for such divine melody . Eudoxus , who lived in the fourth century B. C. , in- vented the theory of the Crystalline Spheres . He held that the heavenly bodies are set , like gems 18 INTRODUCTION .
... the gods - the ears of man being too gross for such divine melody . Eudoxus , who lived in the fourth century B. C. , in- vented the theory of the Crystalline Spheres . He held that the heavenly bodies are set , like gems 18 INTRODUCTION .
Page 19
Joel Dorman Steele. held that the heavenly bodies are set , like gems , in hollow , transparent , crystal globes , which are so pure that they do not obstruct our view , while they all revolve around the earth . The planets are placed in ...
Joel Dorman Steele. held that the heavenly bodies are set , like gems , in hollow , transparent , crystal globes , which are so pure that they do not obstruct our view , while they all revolve around the earth . The planets are placed in ...
Page 23
... heavens . THE COPERNICAN SYSTEM . - About the middle of the sixteenth century , Copernicus , breaking away from the theory of Ptolemy , which was still taught in all the institutions of learning in Europe , revived the theory of ...
... heavens . THE COPERNICAN SYSTEM . - About the middle of the sixteenth century , Copernicus , breaking away from the theory of Ptolemy , which was still taught in all the institutions of learning in Europe , revived the theory of ...
Page 24
... heavenly bodies , and main- tained that , instead of all the starry host revolving about the earth once in twenty - four hours , the earth simply turns on its own axis : that this produces the apparent daily revolution of the sun and ...
... heavenly bodies , and main- tained that , instead of all the starry host revolving about the earth once in twenty - four hours , the earth simply turns on its own axis : that this produces the apparent daily revolution of the sun and ...
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Common terms and phrases
ancients Andromeda angle aphelion appear Aries astronomers atmosphere axis Boötes bright brilliant Canis Minor Capricornus Cassiopeia cause 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 Hercules Herschel horizon inclined inferior conjunction inferior planet Jupiter latitude length light luminous lunar Lyra magnitude Mars mean distance Mercury meridian meteors miles moon's motion move naked eye nearly nebula Neptune night node north pole Orion parallax pass path penumbra perihelion Perseus Pisces polar Polaris precession rays revolve ring rising Saturn seasons seen shine side sidereal sidereal day solar day solar system solstice space spots summer sun's surface synodic revolution tance Taurus telescope theory tion Uranus Ursa Major Ursa Minor varies velocity Venus vernal equinox visible winter Zodiac