Posted: Mar 24, 2017 4:22 pm
by jamest
newolder wrote:This APOD gives various measures that are pertinent to your query.

The associated paper that defines the terms is in the arxiv here.
The paper-and-pencil calculator is a cosmological nomogram which allows to find relations between redshift, distance, age of the Universe, physical and angular sizes, luminosity and apparent magnitude for the standard cosmological model with parameters from the Planck mission.

Thanks, though that only relates to my second question and I can't see how it answers that.