Fourteen Weeks in Descriptive Astronomy |
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Page 34
... EVERY OTHER PARTICLE OF MATTER WITH A FORCE DIRECTLY PROPORTIONAL TO ITS QUANTITY OF MATTER , AND DECREASING AS THE SQUARE OF THE DIS- TANCE INCREASES . SPACE . We now in imagination pass into space , 34 INTRODUCTION .
... EVERY OTHER PARTICLE OF MATTER WITH A FORCE DIRECTLY PROPORTIONAL TO ITS QUANTITY OF MATTER , AND DECREASING AS THE SQUARE OF THE DIS- TANCE INCREASES . SPACE . We now in imagination pass into space , 34 INTRODUCTION .
Page 69
... tances varying from 500 to 600 feet . If space will permit , we may place a moderate - sized orange nearly one - quarter of a mile distant from the start- ing point to represent Jupiter ; a small orange two- fifths of a mile for Saturn ...
... tances varying from 500 to 600 feet . If space will permit , we may place a moderate - sized orange nearly one - quarter of a mile distant from the start- ing point to represent Jupiter ; a small orange two- fifths of a mile for Saturn ...
Page 85
... FROM THE EARTH . - This varies still more than its distance from the sun . At inferior conjunc- tion it is between the earth and the sun , and its dis- tance from us is the difference between the distance of MERCURY . 85.
... FROM THE EARTH . - This varies still more than its distance from the sun . At inferior conjunc- tion it is between the earth and the sun , and its dis- tance from us is the difference between the distance of MERCURY . 85.
Page 86
Joel Dorman Steele. tance from us is the difference between the distance of the earth and the planet from the sun at supe- rior conjunction it is the sum of these distances . Its apparent diameter in these different positions varies in ...
Joel Dorman Steele. tance from us is the difference between the distance of the earth and the planet from the sun at supe- rior conjunction it is the sum of these distances . Its apparent diameter in these different positions varies in ...
Page 91
... tances . * Let the pupil calculate the distances of the earth and Venus from each other , when in perihelion and aphelion , as in the case of Mercury , ( See tables in Appendix . ) The figure represents its apparent dimensions at the ...
... tances . * Let the pupil calculate the distances of the earth and Venus from each other , when in perihelion and aphelion , as in the case of Mercury , ( See tables in Appendix . ) The figure represents its apparent dimensions at the ...
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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