SDSS J124058.03-015919.2 According to MNRAS 361, 487, SDSS J124058.03-015919.2 is a new AM CVn star with a 37-min orbital period. The spectrum resembles those of quiescent AM CVn stars (GP Com, CP Eri etc.). The object is normally at V=19.7, but its outbursts may be reasonally detected. Add this to your regular monitoring program.