Elementary Lessons in Astronomy |
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Page xi
... Path . How the Times of Sunrise and Sunset , and the Length of the Day and Night , may be determined by means of the Celestial Globe XXX . - Apparent Motions of the Moon and Planets . Extreme Meridian Heights of the Moon : Angle of her Path ...
... Path . How the Times of Sunrise and Sunset , and the Length of the Day and Night , may be determined by means of the Celestial Globe XXX . - Apparent Motions of the Moon and Planets . Extreme Meridian Heights of the Moon : Angle of her Path ...
Page xii
... Paths among the Stars . Effects on Physical Observations . Mars . Saturn's Rings PAGE 184 190 CHAPTER V. THE MEASUREMENT OF TIME . XXXIII . - Ancient Methods of Measurement . Clepsy dræ . Sun- Dials . Clocks and Watches . Mean Sun ...
... Paths among the Stars . Effects on Physical Observations . Mars . Saturn's Rings PAGE 184 190 CHAPTER V. THE MEASUREMENT OF TIME . XXXIII . - Ancient Methods of Measurement . Clepsy dræ . Sun- Dials . Clocks and Watches . Mean Sun ...
Page xvi
... Path of Venus among the Stars in 1868 45. Path of Saturn among the Stars , 1862-5 ( Proctor ) 46. Orbits of Mars and the Earth . In this wood- cut some of the oppo- sitions are taken from Proctor . 181 186 191 . 192 FIG . 61. Triangles ...
... Path of Venus among the Stars in 1868 45. Path of Saturn among the Stars , 1862-5 ( Proctor ) 46. Orbits of Mars and the Earth . In this wood- cut some of the oppo- sitions are taken from Proctor . 181 186 191 . 192 FIG . 61. Triangles ...
Page 45
... paths are again curved , this time with the curve in the opposite direction . 105. Now it is important that we make this perfectly clear . We know that the Earth goes round the Sun once a year . It has been found also that its path is ...
... paths are again curved , this time with the curve in the opposite direction . 105. Now it is important that we make this perfectly clear . We know that the Earth goes round the Sun once a year . It has been found also that its path is ...
Page 47
... path ( the points it occupies in June and December ) the spots are seen to describe straight lines across the disc , while midway between these points ( September and March ) their paths are observed to be sharply curved , in one case ...
... path ( the points it occupies in June and December ) the spots are seen to describe straight lines across the disc , while midway between these points ( September and March ) their paths are observed to be sharply curved , in one case ...
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Common terms and phrases
angle aphelion appear Assistant Master astronomers atmosphere attraction axis Boötes called Cambridge celestial equator celestial pole celestial sphere centre circle clock College comet constellation determined diameter direction Earth Earth's rotation Earth's surface ecliptic ELEMENTARY equal equatorial equinox exactly eye-piece fact Fcap follows globe GREEK Greenwich heavenly bodies heavens horizon Illustrated inclined Jupiter latitude length lens LESSON light longitude Mars mass measured meridian meteorites meteors miles Moon Moon's motion nearly nebulæ Neptune node object-glass observed occupied orbit parallax path penumbra perihelion planet point of Aries polar pole portion position prism Prof Professor rays refraction represent revolution revolve round right ascension ring round the Sun satellites Saturn seen shadow side sidereal solar day solstice spectrum spots stars Sun's suppose telescope tion transit travel round triangle true sun Uranus Ursa Ursa Major vapour velocity Venus vernal equinox visible
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