Distance to stars

There are lots of ways of measuing the distance to a star. We will revisit the key ideas as we go through the course but a real focus should be on parallax.

http://earthguide.ucsd.edu/virtualmuseum/ita/06_3.shtml
http://www.ast.cam.ac.uk/~mjp/
http://www.astro.ucla.edu/~wright/distance.htm
http://youtu.be/vyiauRjJBNQ
http://youtu.be/_Lsj-Hz-NS4
http://hyperphysics.phy-astr.gsu.edu/hbase/astro/distance.html