Sorry, formatting hiccup. http://groups.google.com/groups?selm=361AC6B3.436DB6E%40astrosun.tn.cornell.edu http://groups.google.com/groups?selm=3847128F.B532A27F%40astro.cornell.edu http://groups.google.com/groups?selm=37B4F36B.E1D4BCEC%40astrosun.tn.cornell.edu JD