Yerkes Observatory
LocationUSA (WI)
Year1897
Size1.02 m refractor
OperatorUniversity of Chicago
About Yerkes Observatory
Contains the largest refracting telescope in the world. The 1.02 m lens was ground by Alvan Clark. Funded by Charles Tyson Yerkes, a convicted embezzler. Located in Williams Bay, Wisconsin. The birthplace of modern astrophysics.