The earlier thread was closed for some reason.(adsbygoogle = window.adsbygoogle || []).push({});

It prompted this question: Given the formula for CMB temperature Tobs = Tem/(1+z) (analogous to the formula for z) it seems the age of the universe at the emission of the CMB would have been about 12.5 Myr (if 13.75 Gyr presently), not 380,000 years:

1101 = 13750/12.5

If 380,000 is correct, then for z to be 1100 the current age would have to be about 420 Myr:

1100 ~ 420/.38

I understand that calculating for z is complicated for large distances, but the same should hold for CMB. So why the inconsistency?

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# Re: CMB Redshift Question (Visible Wavelengths)

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