Fourteen Weeks in Descriptive Astronomy |
From inside the book
Results 1-3 of 34
Page 29
... Mars ' period , as the cube of Jupiter's distance is to the cube of Mars ' distance ; or , representing the earth's time of revolu- tion by P , and her distance from the sun by p , then letting D and d represent the same in another ...
... Mars ' period , as the cube of Jupiter's distance is to the cube of Mars ' distance ; or , representing the earth's time of revolu- tion by P , and her distance from the sun by p , then letting D and d represent the same in another ...
Page 168
... MARS . The god of war . Sign , 8 , shield and spear . DESCRIPTION . — Passing outward in our survey of the solar system , we next meet with Mars . This is the first of the superior planets , and the one most like the earth . It appears ...
... MARS . The god of war . Sign , 8 , shield and spear . DESCRIPTION . — Passing outward in our survey of the solar system , we next meet with Mars . This is the first of the superior planets , and the one most like the earth . It appears ...
Page 172
... Mars . " Here every con- tinent is an island ; there every sea is a lake : but these , like our own continents , are chiefly confined to one hemisphere , so that the habitable area of the two globes may not differ so much as the size of ...
... Mars . " Here every con- tinent is an island ; there every sea is a lake : but these , like our own continents , are chiefly confined to one hemisphere , so that the habitable area of the two globes may not differ so much as the size of ...
Other editions - View all
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