Fourteen Weeks in Descriptive Astronomy |
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Page 69
Joel Dorman Steele. incline it slightly , as compared with some other fixed plane ring , as in the cut . The astronomical fixed plane is the ecliptic . Imagine a planet follow- ing the inclined ellipse ; at some point it must rise above ...
Joel Dorman Steele. incline it slightly , as compared with some other fixed plane ring , as in the cut . The astronomical fixed plane is the ecliptic . Imagine a planet follow- ing the inclined ellipse ; at some point it must rise above ...
Page 94
... ring of light was observed to surround the black disk of the planet . The evidence of an atmosphere , as well as of mountains , rests very much upon the peculiar appearance attending its crescent shape . ( 1. ) The luminous part does ...
... ring of light was observed to surround the black disk of the planet . The evidence of an atmosphere , as well as of mountains , rests very much upon the peculiar appearance attending its crescent shape . ( 1. ) The luminous part does ...
Page 124
... ring of matter about the equator - is turned , not exactly toward the sun , but is elevated above it . Now the attraction of the sun pulls the part D more strongly than the centre ; the tendency of this is to bring D down to a . In the ...
... ring of matter about the equator - is turned , not exactly toward the sun , but is elevated above it . Now the attraction of the sun pulls the part D more strongly than the centre ; the tendency of this is to bring D down to a . In the ...
Page 136
... ring to the tube the motion of the ball , and carried Fig . 38 . ABERRATION OF LIGHT . along with the former , unconscious of its motion , would fancy that the ball had been moving in an inclined direction , and had come from Q. A very ...
... ring to the tube the motion of the ball , and carried Fig . 38 . ABERRATION OF LIGHT . along with the former , unconscious of its motion , would fancy that the ball had been moving in an inclined direction , and had come from Q. A very ...
Page 156
... ring ( annulus ) ; hence there is an an- nular eclipse in all those places comprised within the limits of the cone of shadow prolonged to the earth . General facts concerning a solar eclipse . - The fol- lowing data may perhaps guide in ...
... ring ( annulus ) ; hence there is an an- nular eclipse in all those places comprised within the limits of the cone of shadow prolonged to the earth . General facts concerning a solar eclipse . - The fol- lowing data may perhaps guide in ...
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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