Proteusx

Astronomical Unit

I backed out your edit adding an interpretation of Eratosthenes estimate. The interpretation that produces the close approximation to reality is a fringe interpretation, arrived at mostly by taking a vague quote and seeing if a way could be found to make it fit facts. It is unlikely that he produced a value with three decimals of precision and then phrased in that awkward way. The other interpretations are more in line with estimates in use at the time. Regards, Tarl N. (discuss) 00:46, 25 January 2018 (UTC)