... Kent Observatory in Queensland, Australia, and Moore Observatory, in Kentucky, USA. This material is Copyright 2012 John Kielkopf , University of Louisville, unless otherwise noted. It is licensed with a Creative Commons License , which provides that it may be used freely for non-commercial purposes provided that the license terms are made clear to others, and that the source and Copyright are acknowledged. ... Last update: October 16, 2012 . kielkopf at louisville dot edu . ...