Fourteen Weeks in Descriptive Astronomy |
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Page 41
... latitude . Celestial longitude is distance from the Vernal Equi- nox measured on the ecliptic , eastward . Celestial latitude is distance from the ecliptic meas- ured on a Subordinate circle , north or south . THE ZODIAC . A belt of the ...
... latitude . Celestial longitude is distance from the Vernal Equi- nox measured on the ecliptic , eastward . Celestial latitude is distance from the ecliptic meas- ured on a Subordinate circle , north or south . THE ZODIAC . A belt of the ...
Page 103
... latitude ( 41 ° ) the speed is about 780 miles per hour . We do not perceive this wonderful velocity with which we are flying through the air , because the air moves with us . * Yet were the earth suddenly to stop its rotation , the ...
... latitude ( 41 ° ) the speed is about 780 miles per hour . We do not perceive this wonderful velocity with which we are flying through the air , because the air moves with us . * Yet were the earth suddenly to stop its rotation , the ...
Page 308
... LATITUDE OF A PLACE . - ( 1 . ) By means of the sextant find the elevation of the pole above the horizon , and this gives the latitude di- rectly . ( 2. ) In the same manner , determine the height of the sun above the horizon at noon ...
... LATITUDE OF A PLACE . - ( 1 . ) By means of the sextant find the elevation of the pole above the horizon , and this gives the latitude di- rectly . ( 2. ) In the same manner , determine the height of the sun above the horizon at noon ...
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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