2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/66940The moduli space of stable real cubic surfaces is the quotient of real hyperbolic four-space by a discrete, nonarithmetic group. The volume of the moduli space is 37π^2/1080 in the metric of constant curvature -1. Each of the five connected components of the moduli space can be described as the quotient of real hyperbolic four-space by a specific arithmetic group. We compute the volumes of these components.4 pages, one figureAlgebraic Geometry14P25text