Fourteen Weeks in Descriptive Astronomy |
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Page 27
... planet along the imaginary orbit , and it did not diverge . The truth was discovered at last , and Kepler an- nounced his first great law- PLANETS REVOLVE IN ELLIPSES , WITH THE SUN AT ONE FOCUS . Second Law . - Kepler knew that the planets ...
... planet along the imaginary orbit , and it did not diverge . The truth was discovered at last , and Kepler an- nounced his first great law- PLANETS REVOLVE IN ELLIPSES , WITH THE SUN AT ONE FOCUS . Second Law . - Kepler knew that the planets ...
Page 28
... planet moves very slowly , and from D to C Fig . 3 . 3 very rapidly ; yet the space inclosed between the lines SB ... planets about the sun and their distances from that body . With the same wonderful patience , he took the figures of ...
... planet moves very slowly , and from D to C Fig . 3 . 3 very rapidly ; yet the space inclosed between the lines SB ... planets about the sun and their distances from that body . With the same wonderful patience , he took the figures of ...
Page 29
... PLANETS ABOUT THE SUN , ARE PROPORTIONAL TO THE CUBES OF THEIR MEAN DISTANCES FROM THE SUN . * In rapture over the ... planet , we have the proportion P : D ' :: p ' : ď . Kepler , strangely enough , believed in the " Music of the ...
... PLANETS ABOUT THE SUN , ARE PROPORTIONAL TO THE CUBES OF THEIR MEAN DISTANCES FROM THE SUN . * In rapture over the ... planet , we have the proportion P : D ' :: p ' : ď . Kepler , strangely enough , believed in the " Music of the ...
Page 30
... night he watched them , discovered a fourth star , and finally found that they were all rapidly revolving around Jupiter , each in its elliptical orbit , with its own rate of motion , and all accompanying the planet in its 30 INTRODUCTION .
... night he watched them , discovered a fourth star , and finally found that they were all rapidly revolving around Jupiter , each in its elliptical orbit , with its own rate of motion , and all accompanying the planet in its 30 INTRODUCTION .
Page 31
Joel Dorman Steele. of motion , and all accompanying the planet in its journey around the sun . Here was a miniature ... planets is necessarily seven . Moreover , the satellites are in- visible to the naked eye , can exercise no influence ...
Joel Dorman Steele. of motion , and all accompanying the planet in its journey around the sun . Here was a miniature ... planets is necessarily seven . Moreover , the satellites are in- visible to the naked eye , can exercise no influence ...
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ancients Andromeda angle aphelion appearance Aries astronomers atmosphere axis body Boötes bright brilliant Canis Minor Capricornus Cassiopeia celestial centre Cepheus circle color comet conjunction constellation Cor Caroli dark density Describe diameter disk Draco earth east ecliptic equal equator equinoctial figure fixed stars full moon globe heat heavens Hercules Herschel horizon inclined inferior inferior conjunction inferior planet Jupiter latitude length light lunar Lyra magnitude Mars mean distance Mercury meridian meteors miles moon moon's motion move naked eye nearly nebula Neptune node north pole orbit Orion parallax pass path penumbra perihelion Perseus Pisces planet Polaris precession rays revolve ring rising Saturn seasons seen shadow shines shower sidereal sidereal day solar day solar system space spots summer sun's superior planet surface synodic revolution tance Taurus telescope theory tion Uranus Ursa Major Ursa Minor varies velocity Venus vernal equinox visible zodiac