I have searched and searched for the background that I used, but I can't find it anymore. If anyone recognizes it, let me know so I can give credit where credit is due. I'm almost positive that it was GPL, though.

Yale bright star map courtesy of NASA:
http://maps.jpl.nasa.gov/stars.html

Thanks to u-m for an OpenGL tip that really improved the quality of my work.

As always, feedback is welcomed.