Van Maanen 2 (van Maanen's Star) is a white dwarf.
 It is a dense, compact stellar remnant that is no longer generating energy, having about 68% of the Sun's mass but only 1% of the Sun's radius.
 Out of the white dwarfs known, it is, at 13.9 light-years, the third closest to the Sun, after Sirius B and Procyon B, in that order, and the closest known solitary white dwarf.
 Discovered in 1917 by Dutch–American astronomer Adriaan van Maanen, Van Maanen 2 was the third white dwarf identified, after 40 Eridani B and Sirius B, and the first that was not a member of a multi-star system.
 A spectrographic plate made in 1917 shows evidence of planetary matter around the star.
John Eastin Van Maanen (born 1943) is an American organizational theorist, Professor of Organization Studies at the MIT Sloan School of Management, and best known for his contributions to qualitative studies in management and to organizational ethnography.
Van Maanen is the name of a Dutch patrician family, originating in the Duchy of Guelders.
 The family takes it name from the town of Manen, situated south of the city of Ede in the province of Gelderland.
Willem Gustaaf van Maanen (30 September 1920 – 17 August 2012) was a Dutch journalist and writer.
 He received the Ferdinand Bordewijk Prijs in 1983 for "Het nichtje van Mozart" and was the 2004 recipient of the Constantijn Huygens Prize.
 He was born in Kampen.
LP 145-141 is a white dwarf located 15 light years from the Solar System.
 According to a 2009 paper, it is the fourth closest known white dwarf to the Sun (after Sirius B, Procyon B, and van Maanen's star.)
Van Maanen is an eroded lunar crater on the far side of the Moon.
 It lies to the east of the crater Kidinnu, and southeast of Tesla and H. G. Wells.
 Since this crater was formed, it has been heavily battered by subsequent impacts to the point where it is little more than a depression in the surface surrounded by an irregular rim.
 The rim edge is heavily worn and poorly defined, with smaller craters lying along the sides.
 These in turn have become worn and rounded.
Tesla is a lunar crater that is located on the Moon's far side, just to the southeast of the larger H. G. Wells.
 About one crater diameter to the southwest of Tesla is Kidinnu, and to the southeast is Van Maanen.
 The crater is named after Serbian American inventor Nikola Tesla.
Buddleja davidii 'Buddma' (selling name ) is a cultivar raised by Pieter van Maanen from a chance seedling found at Plantipp Nurseries, Ederveen, The Netherlands, in 2006.
 
Gregory Van Maanen (born November 3, 1937, Paterson, New Jersey) is an artist who has been exhibiting work since 1988.
 He has had several solo shows at Cavin-Morris Gallery in New York as well as a solo show at Rutgers University.
 His work has been widely shown in group exhibitions and Van Maanen’s art is in the permanent collections of the New Orleans Museum of Art, First Bank of Minneapolis, National Vietnam Veterans Art Museum, New Jersey State Council of the Arts, Jersey City Museum, Morris Museum, and others.
The MIT Sloan School of Management (also known as MIT Sloan or Sloan) is the business school of the Massachusetts Institute of Technology, in Cambridge, Massachusetts, United States.

Question: In what city is John Eastin Van Maanen  a professor?
Answer: Cambridge, Massachusetts