Redshift measurements on a constellation show that it is
receding with a velocity of 7600km/s.
How far away is the galaxy?
We know by hubble law:
Were,
is Hubble constant=67.4 km/s/Mpc.
is recession velocity.
is distance between the galaxy.
Putting the given values in the equation we hvae:
Or,
Hence the galaxy is 112.76 Mega-parsec Away
Or , 376.6 Mega light year away.
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