18 Mar
2022
18 Mar
'22
1:48 a.m.
ASASSN-21ob: dwarf nova below the period gap with strong ellipsoidal variation
From ZTF data.
Porb = 0.0769268(3) d. Double-wave modulation (ellipsoidal variation). Total amplitude 0.14 mag. Too red for this Porb and the secondary may be evolved. Although genuine superoutburst has not been recorded, it is expected.