Astronomical Distances

Wednesday, April 8th, 2009

I was reading some internet forum recently where someone suggested that since parsecs were based on local geometry (how stars appear to move in the sky because of the Earth’s own motion around the sun), no one would use the unit more generally.   Except that astronomers, do, all the time.   Sometimes movie directors do, too […]

Posted in Uncategorized | 3 Comments »>