Rosario Navarro-Escamilla About B.A. in Physics, 2025 College of Arts & Sciences rosarion@upenn.edu Rosario Navarro-Escamilla Determining the Rotational Period of Dwarf Planet Eris From CCD Photometric Observations View Poster Rosario Navarro-Escamilla Determining the Rotational Period of Dwarf Planet Eris From CCD Photometric Observations View Poster