Hubble constant Definition
☆ Hubble constant
noun
a ratio expressing the rate at which the universe is expanding, the so-called constant in Hubble's law, equal to the velocity of a receding galaxy divided by its distance from the earth: symbol, H
Browse dictionary entries near Hubble constant
- ‹ hubble-bubble
- ‹ Hubble
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- ‹ hub
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- ‹ Huang Hai
- ‹ Huang
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