Breadcrumb Home 8A20.50 - Earth/Moon System - Center of Mass Photo Credit - http://www.esa.int/Our_Activities/Space_Science/SMART-1/Moon_Welcome_to_the_double_planet Code Number: 8A20.50Demo Title: Earth/Moon System - Center of MassPrinciple: Earth/Moon SystemArea of Study: AstronomyReferences:"Figuring Physics", TPT, Vol. 44, # 1, Jan. 2006, p. 48.