If a galaxy has a radial velocity of 8000 km/sec and the Hubble constant is 70 km/sec/Mpc, what

is the distance to this galaxy?

What’s the formula for this question?

2

Feb

Feb

Posted by Admin in Wednesday, February 2nd 2011 1 comment so far

If a galaxy has a radial velocity of 8000 km/sec and the Hubble constant is 70 km/sec/Mpc, what

is the distance to this galaxy?

What’s the formula for this question?

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The formula is speed = Hubble constant * distance.

So distance = speed/Hubble constant = 8000 km/sec / 70 km/sec/Mpc = 114 Megaparsec in this case.