The Rothney Astrophysical Observatory (RAO) is an astronomical observatory located near the hamlet of Priddis, Alberta, Canada, about southwest of Calgary. The observatory is owned and operated by the University of Calgary (UC), and was dedicated in 1972. The facility is used for research, undergraduate and graduate teaching, and public outreach. Research performed at the RAO included a variable star search program, follow-up observations of variable star discoveries, and detailed investigat…