Fourteen Weeks in Descriptive Astronomy |
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Page 18
... revolve about it in circular orbits ; that the earth revolves daily on its axis , and yearly around the sun ; that Venus is both morning and evening star ; that the planets are inhabited - and he even attempted to calculate the size of ...
... revolve about it in circular orbits ; that the earth revolves daily on its axis , and yearly around the sun ; that Venus is both morning and evening star ; that the planets are inhabited - and he even attempted to calculate the size of ...
Page 19
... revolve around the earth . The planets are placed in one globe , but have a power of moving themselves , under the guidance — as Aristotle taught -of a tutelary genius , who resides in each , and rules over it as the mind rules over the ...
... revolve around the earth . The planets are placed in one globe , but have a power of moving themselves , under the guidance — as Aristotle taught -of a tutelary genius , who resides in each , and rules over it as the mind rules over the ...
Page 23
... revolve the earth and all the planets . He noticed how constantly , when we are riding swiftly , we forget our own motion , and think that the trees and fences are gliding by us in * Ple ' - ya - dez . the contrary direction . He ...
... revolve the earth and all the planets . He noticed how constantly , when we are riding swiftly , we forget our own motion , and think that the trees and fences are gliding by us in * Ple ' - ya - dez . the contrary direction . He ...
Page 24
... revolve about it daily in circular orbits . Brahé was a noble- man of wealth , and , in addition , received large sums from the Government . He erected a magnificent observatory , and made many beautiful and rare in- struments . Clad in ...
... revolve about it daily in circular orbits . Brahé was a noble- man of wealth , and , in addition , received large sums from the Government . He erected a magnificent observatory , and made many beautiful and rare in- struments . Clad in ...
Page 27
... REVOLVE IN ELLIPSES , WITH THE SUN AT ONE FOCUS . Second Law . - Kepler knew that the planets do not move with equal velocity in the different parts of their orbits . He next set about establish- ing some law by which this speed could ...
... REVOLVE IN ELLIPSES , WITH THE SUN AT ONE FOCUS . Second Law . - Kepler knew that the planets do not move with equal velocity in the different parts of their orbits . He next set about establish- ing some law by which this speed could ...
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Common terms and phrases
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