Exploration of the Universe |
Contents
Epilogue | 23 |
The Birth of Modern Astronomy | 35 |
Motions of Celestial Bodies | 61 |
Copyright | |
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Common terms and phrases
200-inch telescope absolute magnitude acceleration amount angle angular appear astronomical atoms axis binary body bright celestial equator celestial pole celestial sphere cepheids circle clouds color comets corona craters density diameter direction disk distance earth earth's atmosphere eclipse electrons emission emitted energy Figure force galactic galaxies gases globular clusters gravitational H-R diagram helium horizon hydrogen interstellar ionized Jupiter Kepler's km/sec known lens light luminosity luminous lunar main sequence Mars measured Mercury meridian meteorites meteoroids meteors mi/sec million minor planets moon moon's Mount Wilson moving nebula Newton's nucleus objects observed open clusters Palomar Observatories parallax particles period photographs photosphere produced proper motion radial velocity radiation radius red giants regions relative orbit revolution revolve rotation satellites sidereal solar system space spectrum speed spiral star's stars stellar sun's sunspot surface temperature tion Uranus variables Venus visible wavelengths white dwarf Wilson and Palomar