[vsnet-newvar 9307] ASASSN-22gm: eclipsing AM CVn star

ASASSN-22gm: eclipsing AM CVn star

Berto Monard has reported observations. I obtained the following ephemeris (single night):

BJD(Min) = 2459705.53602(7) + 0.02890(3) E

Eclipse depth 0.26 mag. No superhumps were detected. The orbital profile is somewhat strange in that it showed two maxima in one orbital cycle. They might be (super)hump-like variations with a period of the orbital period. The object is most likely an eclipsing AM CVn star with infrequent outbursts. Further observations are needed to see whether this was a precursor or an isolated normal outburst.