MadSci Network: Astronomy

Re: Age of CMB versus age of the unverse

Date: Thu Feb 14 13:20:19 2008
Posted By: Benjamin Monreal, Physics postdoc
Area of science: Astronomy
ID: 1200946135.As

Hello Bob, I'm sorry, but the answer seems to be that there's an error in your calculations. The CMB redshift of Z=1000 indeed corresponds to a distance of 13.7 x 10^9 light years, not 46.5 x 10^9. Perhaps you should write back (MadSci can forward an email to me, or search for my name online) and show me the calculation that gave you 46.5 Gly---I will help you find the mistake.

Otherwise, there are online calculators that can do the math for you---a good one is



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