Michael Stogden nous a écrit :


The only size that you can estimate is the size of the observable universe.
By definition, you can't have access to the size of the whole universe.
You're right. May I suggest you to read this page :
http://www.anzwers.org/free/universe/redshift.html
You will see all the difficulties ...

--
Norbert. (no X for the answer)
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knowing the universe - stellar and galaxies evolution
http://nrumiano.free.fr
images of the sky http://images.ciel.free.fr
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