Fourteen Weeks in Descriptive Astronomy |
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Page 31
... visible to the naked eye , can exercise no influence over the earth , and would be useless , and therefore do not exist . Besides , the week is divided into seven days , which are named from the seven planets . Now , if we increase the ...
... visible to the naked eye , can exercise no influence over the earth , and would be useless , and therefore do not exist . Besides , the week is divided into seven days , which are named from the seven planets . Now , if we increase the ...
Page 36
... visible to us ; and so far distant are the stars , that we see just as much of the sphere as we would if the upper part of the earth were removed , and we were to stand four thousand miles further away , or at the very centre of the ...
... visible to us ; and so far distant are the stars , that we see just as much of the sphere as we would if the upper part of the earth were removed , and we were to stand four thousand miles further away , or at the very centre of the ...
Page 37
... visible from the invisible heavens . The Sensible Horizon is the small circle where the earth and sky seem to meet ; it is parallel to the rational horizon , but distant from it the semi - diameter of the earth . No two places have the ...
... visible from the invisible heavens . The Sensible Horizon is the small circle where the earth and sky seem to meet ; it is parallel to the rational horizon , but distant from it the semi - diameter of the earth . No two places have the ...
Page 45
... visible object , but in accordance with the law of Universal Gravitation discovered by Newton , whereby each planet attracts every other planet and is in turn attracted by all . First , the Sun , a great central globe , so vast as to ...
... visible object , but in accordance with the law of Universal Gravitation discovered by Newton , whereby each planet attracts every other planet and is in turn attracted by all . First , the Sun , a great central globe , so vast as to ...
Page 52
... visible to the naked eye for an entire week . On the day of the eclipse in 1858 , a spot over 107,000 miles broad was distinctly seen , and attracted general attention in this country . Some who read this paragraph will doubtless recall ...
... visible to the naked eye for an entire week . On the day of the eclipse in 1858 , a spot over 107,000 miles broad was distinctly seen , and attracted general attention in this country . Some who read this paragraph will doubtless recall ...
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Common terms and phrases
ancients Andromeda angle aphelion appear Aries astronomers atmosphere axis Boötes bright brilliant Canis Minor Capricornus Cassiopeia cause Celestial Sphere centre Cepheus circle color comet conjunction constellation Cor Caroli dark density Describe diameter disk earth east ecliptic equal equator equinoctial figure fixed stars full moon globe heat heavenly bodies heavens Hercules Herschel horizon inclined inferior conjunction inferior planet Jupiter latitude length light luminous lunar Lyra magnitude Mars mean distance Mercury meridian meteors miles moon's motion move naked eye nearly nebula Neptune night node north pole Orion parallax pass path penumbra perihelion Perseus Pisces polar Polaris precession rays revolve ring rising Saturn seasons seen shine side sidereal sidereal day solar day solar system solstice space spots summer sun's surface synodic revolution tance Taurus telescope theory tion Uranus Ursa Major Ursa Minor varies velocity Venus vernal equinox visible winter Zodiac