Abstract:
UBV photometry of RS CVn- type eclipsing binary system ER Vulpeculae has been presented. The period comes out to be 0.ᵈ698093. The average depths of primary and secondary minima are, respectively,0.ᵐ21 and 0.ᵐ12. The colours at various phases have been given. A dip is seen around phase 0.ᵖ73 as was seen in the observations of Arevalo et al. (1988). Large scatter is present in the observations as noticed earlier, and may be due to activity of the components.
