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megaparsec |
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megaparsec [‚meg·ə′pär‚sek] (astronomy) A unit equal to 1,000,000 parsecs. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Using four different ways to measure distances in the cosmos, the astronomers find a Hubble constant of 70 kilometers per second per megaparsec. At the meeting, Freedman reported a Hubble constant of about 73 kilometers per second per megaparsec, which corresponds to a universe between 9 and 12 billion years old. Applying this calibration to the elliptical galaxies in the Coma cluster, the team found a distance of about 345 million light-years and a Hubble constant between 61 and 77 kilometers per second per megaparsec (1 parsec is 3. |
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