During Wesleyan's 189th Commencement ceremony, seven faculty were recognized for retiring from active service on the faculty and have attained emeritus status: William Herbst, a member of the Wesleyan faculty since 1978 and John Monroe Van Vleck Professor of Astronomy since 2000. Joyce Jacobsen, a member of the Wesleyan faculty since 1993 and Andrews Professor of Economics since 2003. J. Donald Moon, a member of the Wesleyan faculty since 1970 and Ezra and Cecile Zilkha Professor in the College of Social Studies since 2008. Thomas Morgan, a member of the Wesleyan faculty since 1973 and Foss Professor of Physics since…