Black Holes, Quasars & the Universe |
Contents
PRELIMINARY BASIC ASTRONOMICAL TERMINOLOGY | 1 |
Stars and their properties | 8 |
The scientific process | 16 |
Copyright | |
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Common terms and phrases
absolute magnitudes active galaxies astronaut astronomers Astrophysical Journal atoms Big Bang theory billion black hole bright Cepheids Chapter clocks closure density clusters of galaxies collapse companion contains core cosmic cosmological Cygnus X-1 deuterium disk distance earth Einstein's theory elliptical galaxies emission lines emit energy source Epsilon Aurigae event horizon exist expanding galactic helium high-energy electrons Hubble constant hydrogen idea indicate infrared interferometer intergalactic ionized kilometers per second light look luminosity luminous massive star measure megaparsecs Messier Milky model world moving N-galaxies Nebula neutron star nucleus objects observations optical orbit parsecs photograph photons picture primeval fireball produce pulsars quasars radio emission radio galaxies radio sources radio waves real world red giant redshift rocket rotation Sandage scientific Sirius solar masses space spectra spectrum spiral galaxies star's Steady State theory stellar evolution supernova synchrotron radiation telescope temperature tion velocity wavelengths white dwarfs wormholes x-ray sources