(Planetarium, 151', 1978, OK-55-18) at the Science Museum in Oklahoma City, Oklahoma County, OK. Martin Luther King Av. S. 0.9 miles from jct with I44 exit 129, E. on 52nd St. 0.15 miles to the bldg on the S. side of the road at 2100. (5-30-09, N35 31.418 W97 28.439) Photo by Jack Schmidt.