Fourteen Weeks in Descriptive Astronomy |
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Page 30
... , 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 .
... , 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 Copernican system , hung up in the sky for all to see and examine for themselves . Reception of the discoveries ...
Joel Dorman Steele. of motion , and all accompanying the planet in its journey around the sun . Here was a miniature Copernican system , hung up in the sky for all to see and examine for themselves . Reception of the discoveries ...
Page 32
... motion as we have learned them in Philosophy . When a body is once set in motion , it will continue to move forever in a straight line , unless another force is applied . As there is no friction in space , the planets do not lose any of ...
... motion as we have learned them in Philosophy . When a body is once set in motion , it will continue to move forever in a straight line , unless another force is applied . As there is no friction in space , the planets do not lose any of ...
Page 38
... motion - thus making 15 ° equal to one hour of motion . Through these divisions run twenty - four meridians , each constituting an hour of motion ( time ) or 15 ° of space . The Hour Circles may be conceived as meridians of terrestrial ...
... motion - thus making 15 ° equal to one hour of motion . Through these divisions run twenty - four meridians , each constituting an hour of motion ( time ) or 15 ° of space . The Hour Circles may be conceived as meridians of terrestrial ...
Page 53
... luminous bridges . The spots are in motion . - They change from day to day ; but they all have a common movement . About fourteen days are required for a spot to pass across the disk of the sun from the eastern sido. THE SUN . 53.
... luminous bridges . The spots are in motion . - They change from day to day ; but they all have a common movement . About fourteen days are required for a spot to pass across the disk of the sun from the eastern sido. THE SUN . 53.
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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