Modern AstronomyFor one-or two-semester courses in general astronomy. |
Contents
1 | 1 |
THE PLANET EARTH | 15 |
THE MOTION CHARACTERISTICS OF THE EARTH | 31 |
Copyright | |
23 other sections not shown
Common terms and phrases
absorption Andromeda system angle angular apparent magnitude appear astronomers atmosphere atoms axis binary brightness celestial cepheids chemical close cloud components constellation convective core corona density determine diameter discussed distance earth eclipse electrons emission emitted equator FIGURE flare globular clusters gravitational H II regions H-R diagram Hale Observatories helium hydrogen interstellar material ionization Jupiter kinetic energy km/sec large number luminosity magnetic field main sequence mass measure molecules moon motion naked eye neutron star nuclear nucleus objects observed open clusters orbit particles period phase photograph photons photosphere physical planetary nebulae planets pole position pulsar quasars radial velocities radiation radio sources radius range redshift regions relative right ascension rotation satellites Section solar system space spectral classes spectral lines spectrum speed sphere spiral arms stellar structure sunspot supernova surface telescope temperature tion typical universe Venus visible wavelength white dwarfs