MASTER OT J204200.48+041839.9: possible SU UMa star with short supercycle ASAS-SN data: https://asas-sn.osu.edu/light_curves/d8d0a520-8e2f-46fe-8232-98d0f4d9bea0 ASAS-SN and ZTF data suggest a supercycle of 60-120 d.