Working on the Harold C. Simmons Dark Energy Optical System

WFC+HLee.jpg

WFC+HLee.jpg

Research Associate Hanshin Lee works on the Harold C. Simmons Dark Energy Optical System before it is placed atop the Hobby-Eberly Telescope. The 2-ton Simmons System is 5 meters tall, and contains four precisely alligned mirrors (three 1-meter mirrors and one 0.25-meter mirror). (Hanshin Lee/McDonald Observatory)