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Hub'ble's con'stant



Astron.
the ratio of the recessional velocity of galaxies to their distance from the sun, with current measurements of its value ranging from 50 to 100 km/sec per megaparsec.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

hubble-bubbleHubble's law
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