I wrote: > Cornell courses (undergrad only): > http://physics.ucf.edu/~jh/ast/ast234-2003/ > http://physics.ucf.edu/~jh/ast/ast234-2004/ I should have written: Cornell courses (undergrad only): http://physics.ucf.edu/~jh/ast/astro234-2003/ http://physics.ucf.edu/~jh/ast/astro234-2004/ --jh--