Fourteen Weeks in Descriptive Astronomy |
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Page 128
... seasons at different periods of time . In the year 4089 B. C. , about the supposed epoch of the crea- tion , the earth was in perihelion at the autumnal equinox , so that the summer and autumn seasons were of equal length , but shorter ...
... seasons at different periods of time . In the year 4089 B. C. , about the supposed epoch of the crea- tion , the earth was in perihelion at the autumnal equinox , so that the summer and autumn seasons were of equal length , but shorter ...
Page 324
... seasons . When is it brightest ? Its Day ? Year ? Peculiarity of its orbit ? Mass ? Force of gravity ? 171. Has it any atmosphere ? Moon ? Appearance of our earth ? Telescopic features . ( The land and sea features have been so well ...
... seasons . When is it brightest ? Its Day ? Year ? Peculiarity of its orbit ? Mass ? Force of gravity ? 171. Has it any atmosphere ? Moon ? Appearance of our earth ? Telescopic features . ( The land and sea features have been so well ...
Page 325
Joel Dorman Steele. Force of gravity ? Figure ? Describe its seasons . Upon what does the change of seasons in any planet depend ? 178. The appearance of the sky ? The telescopic features ? Are Jupiter's moons visible to the naked eye ...
Joel Dorman Steele. Force of gravity ? Figure ? Describe its seasons . Upon what does the change of seasons in any planet depend ? 178. The appearance of the sky ? The telescopic features ? Are Jupiter's moons visible to the naked eye ...
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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