1 Estimation of the temperature of a radiating body by measuring stationary temperatures of a thermometer placed at different distances V.M. Barragán*, J.P.G. Villaluenga, M.A. Izquierdo-Gil, R. Pérez-Cordón† Department of Applied Physics I, Faculty of Physics, University Complutense of Madrid, 28040, Spain. (*) To whom correspondence should be addressed. Tel (34) 91 3945094; fax: (34) 913945191; email: vmabarra@ucm.es † Deceased March 2016