NSV04618 (?) orbital period I have obtained the following orbital ephemeris. Min(BJD) = 2454884.13437(2) + 0.065769264(2) E The orbital hump is clearly visible: http://www.kusastro.kyoto-u.ac.jp/~tkato/tmp/nsv04618orb.png So this is an eclpsing (relatively short period) SU UMa-type dwarf nova.