distinction

I started my short stint as a distinguished visitor at Haverford today, with an appearance in Beth Willman's class on astronomical ideas for non-science majors, with a seminar on the dark matter, and with an appearance in an observational astronomy laboratory course. In the latter, we took data the students had taken at KPNO last week and assembled it into color JPEGs for visualization. Of course we started at Astrometry.net.