Reference > The New Dictionary of Cultural Literacy > 19. Physical Sciences and Mathematics
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  The New Dictionary of Cultural Literacy, Third Edition.  2002.
 
astronomical unit
 
 
The mean distance between the Earth and the sun, about 98 million miles or 150 million kilometers. It is often abbreviated as AU.  1
 
 
The New Dictionary of Cultural Literacy, Third Edition. Edited by E.D. Hirsch, Jr., Joseph F. Kett, and James Trefil. Copyright © 2002 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

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