Fourteen Weeks in Descriptive Astronomy |
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Page 9
... sun's distance . It was hoped that the tran- sit of Venus , Dec. 8 , 1874 , would furnish data for determining the ques- tion definitely . As yet , the reported results are not satisfactory . Authorities agree that the mean solar ...
... sun's distance . It was hoped that the tran- sit of Venus , Dec. 8 , 1874 , would furnish data for determining the ques- tion definitely . As yet , the reported results are not satisfactory . Authorities agree that the mean solar ...
Page 15
... suns - of which our own sun itself is one- -so far removed from us that their light mingles , and makes only a fleecy whiteness . This magnificent panorama of the heavens is before us , inviting our study , and waiting to make known to ...
... suns - of which our own sun itself is one- -so far removed from us that their light mingles , and makes only a fleecy whiteness . This magnificent panorama of the heavens is before us , inviting our study , and waiting to make known to ...
Page 17
... sun - dial , and also discovered the " Saros " or " Chaldean Period , " which is the length of time in which the eclipses of the sun and moon repeat themselves in the same order . THE GRECIANS . - In the seventh century B. C. , Thales ...
... sun - dial , and also discovered the " Saros " or " Chaldean Period , " which is the length of time in which the eclipses of the sun and moon repeat themselves in the same order . THE GRECIANS . - In the seventh century B. C. , Thales ...
Page 20
... sun , then going apparently behind the sun , appeared to pass on again in a course directly opposite . At one time she would recede from the sun more and more slowly and coyly , until she would appear to be entirely station- ary ; then ...
... sun , then going apparently behind the sun , appeared to pass on again in a course directly opposite . At one time she would recede from the sun more and more slowly and coyly , until she would appear to be entirely station- ary ; then ...
Page 27
... sun at the centre , and again fol- lowed the planet Mars in its course . But very soon there was as great discrepancy between the observed and computed places as before . Undismayed by this failure , Kepler assumed another hypothesis ...
... sun at the centre , and again fol- lowed the planet Mars in its course . But very soon there was as great discrepancy between the observed and computed places as before . Undismayed by this failure , Kepler assumed another hypothesis ...
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ancients Andromeda angle aphelion appearance Aries astronomers atmosphere axis body Boötes bright brilliant Canis Minor Capricornus Cassiopeia celestial centre Cepheus circle color comet conjunction constellation Cor Caroli dark density Describe diameter disk Draco earth east ecliptic equal equator equinoctial figure fixed stars full moon globe heat heavens Hercules Herschel horizon inclined inferior inferior conjunction inferior planet Jupiter latitude length light lunar Lyra magnitude Mars mean distance Mercury meridian meteors miles moon moon's motion move naked eye nearly nebula Neptune node north pole orbit Orion parallax pass path penumbra perihelion Perseus Pisces planet Polaris precession rays revolve ring rising Saturn seasons seen shadow shines shower sidereal sidereal day solar day solar system space spots summer sun's superior planet surface synodic revolution tance Taurus telescope theory tion Uranus Ursa Major Ursa Minor varies velocity Venus vernal equinox visible zodiac