Fourteen Weeks in Descriptive Astronomy |
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Page 112
... rays of the sun strike the various por- tions of the earth , when in any position , at different angles . - Example . When the earth is in Libra , and also when in Aries , the rays strike vertically at the equator , and more and more ...
... rays of the sun strike the various por- tions of the earth , when in any position , at different angles . - Example . When the earth is in Libra , and also when in Aries , the rays strike vertically at the equator , and more and more ...
Page 115
... rays could leave a line of golden light , they would mark on the earth the circle of the equator . It is autumn in the north temperate zone and spring in the south temperate zone . The days and nights are equal over the whole earth ...
... rays could leave a line of golden light , they would mark on the earth the circle of the equator . It is autumn in the north temperate zone and spring in the south temperate zone . The days and nights are equal over the whole earth ...
Page 133
... rays of light having to pass through a larger space in the atmosphere , but also by their travers- ing the lower and ... rays by the atmosphere . For a time after the sun has truly set , the refracted rays continue to reach the earth ...
... rays of light having to pass through a larger space in the atmosphere , but also by their travers- ing the lower and ... rays by the atmosphere . For a time after the sun has truly set , the refracted rays continue to reach the earth ...
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Common terms and phrases
ancients angle aphelion appear astronomers atmosphere axis bright brilliant called Capricornus Cassiopeia Celestial Sphere centre circle color comet conjunction constellation Cor Caroli dark density diameter disk earth east ecliptic equal equator equinoctial figure fixed stars full moon globe heat heavenly bodies heavens Hercules Herschel horizon inclined inferior inferior conjunction inferior planet Jupiter latitude length light longitude luminous lunar magnitude Mars mean distance measured Mercury meridian meteors miles moon moon's motion move naked eye nearly nebula Neptune night node north pole obliquity observer orbit parallax pass path penumbra perihelion Perseus planet polar position rays revolve Right Ascension ring rotation satellites Saturn seasons seen shadow shine side sidereal sidereal day solar system space spots summer sun's superior planet supposed surface synodic revolution tance Taurus telescope theory tion Uranus Ursa Major varies velocity Venus vernal equinox visible zenith zodiac