| 单词 | hubble's constant |
| 释义 | Hubble's constantnoun Astronomy.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 kilometers per second per megaparsec. Origin of Hubble's constantFirst recorded in 1950–55; after E. P. Hubble Words nearby Hubble's constanthubble-bubble, Hubble classification, Hubble classification system, Hubble constant, Hubble, Edwin, Hubble's constant, Hubble's law, Hubble Space Telescope, Hubble telescope, hubbly, hubbub Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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