The light curve of V616 Mon = A0620-00.

Summary. A photographic light curve for the X-ray nova V616 Mon and an electronographic sequence in the field are presented. The light curve shows a decline at 0.015 mag per day until 1975 late December, a flat portion until 1976 mid-March and a rapid final decline. The relationship to the X-ray flux and the possibility of periodic variations are discussed.