Fourteen Weeks in Descriptive Astronomy |
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Page 59
... cause a condensation of gases . The spots do not influence the fruitfulness of the sea- son . - Sir W. Herschel first advanced the idea that years of abundant spots would be years also of plen- tiful harvest . This is not now generally ...
... cause a condensation of gases . The spots do not influence the fruitfulness of the sea- son . - Sir W. Herschel first advanced the idea that years of abundant spots would be years also of plen- tiful harvest . This is not now generally ...
Page 61
... to slowly increase and as- sume the blackness of an umbra , after which the penumbra begins to appear . PHYSICAL CONSTITUTION OF THE SUN . - Of the consti- tution of the sun , and consequent cause of the. THE SUN . 61.
... to slowly increase and as- sume the blackness of an umbra , after which the penumbra begins to appear . PHYSICAL CONSTITUTION OF THE SUN . - Of the consti- tution of the sun , and consequent cause of the. THE SUN . 61.
Page 62
Joel Dorman Steele. tution of the sun , and consequent cause of the solar spots , very little is definitely known . We shall notice the various theories now adopted by different astronomers . WILSON'S THEORY . - This theory supposes that ...
Joel Dorman Steele. tution of the sun , and consequent cause of the solar spots , very little is definitely known . We shall notice the various theories now adopted by different astronomers . WILSON'S THEORY . - This theory supposes that ...
Page 65
... find traces of the same Divine hand , moulding and directing in conformity to one universal plan . The laws of light and heat will be invariable . The law of gravitation , which causes a stone to fall to THE PLANETS . 65 THE PLANETS.
... find traces of the same Divine hand , moulding and directing in conformity to one universal plan . The laws of light and heat will be invariable . The law of gravitation , which causes a stone to fall to THE PLANETS . 65 THE PLANETS.
Page 66
Joel Dorman Steele. of gravitation , which causes a stone to fall to the ground , will be found to apply equally to the most distant planets . Even the very elements of which they are composed will be familiar to us , so that a book of ...
Joel Dorman Steele. of gravitation , which causes a stone to fall to the ground , will be found to apply equally to the most distant planets . Even the very elements of which they are composed will be familiar to us , so that a book of ...
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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