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{%type%} Definitions

WordNet 3.0Copyright Princeton University


Short "hint"

One million units of astronomical length each of which is equal to 3.26 light-years.

Usage examples (11)
  • The project I was running was designed to extract this information for all the galaxies in a many cubic megaparsec volume of the local Universe.
  • Currently, most astronomers agree that the value of the Hubble constant is about 71 kilometers per second per megaparsec a megaparsec is 3.2 million light-years.
  • The expansion rate became known as the Hubble constant; Hubble thought it was 500 kilometers per second every 3.26 million light-years, that is, every megaparsec.
  • Therefore, since the curvature of the universe is essentially set by its expansion rate, the expansion rate of the universe determines how far away assuming special relativity... for more
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