Fourteen Weeks in Descriptive Astronomy |
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Page 122
... Lyra will be our polar star : 4,500 years ago the polar star was the bright star in the constellation Draco . As the right ascension of the stars is reckoned eastward from the vernal equinox along the equinoctial , the precession of the ...
... Lyra will be our polar star : 4,500 years ago the polar star was the bright star in the constellation Draco . As the right ascension of the stars is reckoned eastward from the vernal equinox along the equinoctial , the precession of the ...
Page 262
... LYRA DOLPHIN ARROW Altau EAGLE Vega SERPENS ANTINOUS Cygnus , the swan , is a remarkable group of stars , the principal ones being so arranged as to form a large and beautiful cross . The upright piece lies along the Milky Way . It is ...
... LYRA DOLPHIN ARROW Altau EAGLE Vega SERPENS ANTINOUS Cygnus , the swan , is a remarkable group of stars , the principal ones being so arranged as to form a large and beautiful cross . The upright piece lies along the Milky Way . It is ...
Page 263
Joel Dorman Steele. Lyra , the harp , contains one brilliant blue star , Vega . Close by it is a parallelogram of four smaller stars , by which it may be easily recognized . This is the celestial lyre upon which Orpheus discoursed such ...
Joel Dorman Steele. Lyra , the harp , contains one brilliant blue star , Vega . Close by it is a parallelogram of four smaller stars , by which it may be easily recognized . This is the celestial lyre upon which Orpheus discoursed such ...
Page 265
... Lyra into two compo- nents . In case two stars happen to lie in the same straight line from us , though at immense distances from each other , their light will blend . They will be seen by the naked eye as a single star , and by the ...
... Lyra into two compo- nents . In case two stars happen to lie in the same straight line from us , though at immense distances from each other , their light will blend . They will be seen by the naked eye as a single star , and by the ...
Page 266
... Lyra has a blue tint , and Castor a green one . In the pure transparent at- mosphere of tropical regions , the colors are far more brilliant . There , oftentimes , the nocturnal sky is a blaze of jewels , the stars glittering with the ...
... Lyra has a blue tint , and Castor a green one . In the pure transparent at- mosphere of tropical regions , the colors are far more brilliant . There , oftentimes , the nocturnal sky is a blaze of jewels , the stars glittering with the ...
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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