The emission spectrum of the supermassive compact dark object at the Galactic center is calculated in the framework of standard thin accretion disk theory assuming that the compact object is a neutrino ball of 2.6 \times 10 ^ { 6 } M _ { \odot } instead of a supermassive black hole . The neutrino ball scenario could explain the observed radio and infrared emission spectrum of the Galactic center for wavelengths between \lambda = 0.3 { cm } and \lambda = 10 ^ { -3 } { cm } , if the neutrino mass and the accretion rate fulfil some constraints .