WIYN Consortium consists of the University of Wisconsin–Madison (W), Indiana University (I), Yale University (Y), and the National Optical Astronomy Observatories (N). The consortium operates two telescopes of 3.5 m and 0.9 m diameters.
The universities financed the construction of the WIYN Observatory at Kitt Peak National Observatory (KPNO) in 1994.
In 2001, the WIYN Consortium took over control of the KPNO 36-inch (910 mm) telescope, built in 1960, and rechristened it as the WIYN 0.9 m Telescope. This small but popular telescope was in danger of being mothballed for budgetary reasons.
References
WIYN Consortium Wikipedia(Text) CC BY-SA