Asimov on AstronomyA collection of essays from Dr. Asimov's earlier works explaining scientific puzzles and speculating about the universe, the solar system and the stars. |
Contents
Time and Tide | 1 |
The Rocks of Damocles | 27 |
The Trojan Hearse | 44 |
Copyright | |
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Common terms and phrases
absolute magnitude actually Alpha Centauri Andromeda galaxy angular apparent magnitude appeared asteroid astronomers atmosphere average distance Barnard's Star body bright brighter brightest calculate Cepheids circle close comet cometary planetoids consider course craters Delta Cephei density discovered dust Earth effect energy equal Equation explosion fact full Moon galactic giant planets globular clusters Greek heavens hundred Jupiter Jupiter's Kepler's Lagrangian points larger light light-years luminous Magellanic Clouds mass means Mercury meteorite miles in diameter Milky million minutes Moon's move naked eye Neptune Nereid night sky nova nucleus object OBSERVATORIES observer ocean Olbers outer PALOMAR OBSERVATORIES parsecs period of revolution PHOTO planetary planetoids Pluto Population radiation radius reason revolve ring Saturn seemed seen shell sidereal day Sirius smaller solar day solar system space stars Sun's supernova suppose surface area Table telescope temperature Tenth Planet thousand tides Triton Trojan true satellite tug-of-war value universe Uranus Venus visible volume