Abstract
LoTr 1 is a planetary nebula thought to contain an intermediate-period binary central star system (orbital period, P ∼ 100-1500 days). The system shows the signature of a K-type, rapidly rotating giant, and most likely constitutes an accretion-induced post-mass transfer system similar to other PNe such as LoTr 5, WeBo 1 and A70.
