2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/115935We present a new and exploratory method to estimate the distance of microquasars by suggesting an empirical correlation between the bluemost point of the bisector of the cross-correlation function and the absolute magnitude.2 pages, no figures, to appear in proc. of "Precision Spectroscopy in Astrophysics", Aveiro, Sep. 2006, eds N. Santos et alAstrophysicstext