Questions about the Hubble constant, the constant factor of the rate of expansion in the universe
The Hubble constant is a constant of proportionality between the proper distance of a galaxy and its velocity.
Questions tagged [hubble-constant]
73 questions
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Does the Hubble constant depend on redshift?
I know there are lot of questions on the Hubble constant already, but I am curious to know if it changes with redshift? If at current redshift, $z=0$, we know its value to be 0.7, will it be different at higher redshift ($z=0.1$)? If so, is there…
bhjghjh
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How sure are we about the speed of light in vacuum in deep/far space?
A very naive question related to galaxy recessional velocity. In simple term : The further away it is, the faster it goes.
And we know it's redshifting because we can mesure a change in frequency of the hydrogen "line". Sure, fine. Make total sense…
ker2x
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Could the Hubble Constant be an artifact of the structure, and thus a way to directly measure the universes's age?
"Expressed in inverse years, the value 70 km/s/Mpc comes to about one divided by 14 billion years - the approximate age of the universe."
Could the Hubble Constant be an artifact of the structure, and thus a way to roughly directly measure its age?…
Mark Besser
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