Structure of the Universe

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Unformatted text preview: on light-years The Universe Radius of the observable universe is about 46.5 billion light-years. Age of the universe is about 13.7 billion years. Example Concept Test Arrange the following items according to size, smallest to largest. a.) atom, planet, sun, galaxy, cluster of galaxies. b.) proton, galaxy, star cluster, cluster of galaxies. c.) proton, star, galaxy, solar system. d.) Sun, solar system, cluster of galaxies, star cluster. For next time, Read prologue. Read Ch. 1.1 and 1.2....
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This note was uploaded on 04/18/2008 for the course ASTR 1010 taught by Professor Jones during the Spring '08 term at Georgia Southern University .

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