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Hubble constant

noun

  1. the rate at which the expansion velocity of the universe depends on distance away. It is currently estimated to lie in the range 60–80 km s –1megaparsec –1 Also calledHubble parameter
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Hubble classification systemHubble, Edwin