Illinois Observatories Adolphson Observatory Observatory for Monmouth College C.H. Lanphier Observatory Observatory for the Sangamon Astronomical Society Chamberlain Observatory Private Observatory Campus Observatory Observatory for the University of Illinois Carl Gamble Observatory Observatory for Augustana College Claustonberry Observatory Private Observatory Davis Hall Observatory Observatory for Northern Illinois University Dearborn Observatory Observatory for Northwestern University Decker-Grebner-Van Zandt Observatory Observatory for the Peoria Astronomical Society Doane Observatory Observatory for the Adler Planetarium Doug Firebaugh Observatory Public Observatory DuPage Valley Observatory Observatory for the Naperville Astronomical Association Fieldon Hill Observatory Private Observatory Glen D. Riley Observatory Observatory for the Naperville Astronomical Association Hawkeye Observatory Private Observatory Henry R. Barber Research Observatory Observatory for the University of Illinois J. Weiskopf Observatory Public Observatory Knox College Observatory Observatory for Knox College Lela Christman Observatory Private Observatory Lily Lake Observatory Private Observatory Mark Evans Observatory Observatory for Illinois Wesleyan University Moraine Valley Community College Observatory Observatory for Moraine Valley Community College Mount Jennings Observatory Private Observatory Northmoor Observatory Private Observatory Olivet Nazarene University Observatory Observatory for Olivet Nazarene University Pana Illinois Celestial Observatory Private Observatory Principia Observatory Observatory for Principia College Requarth Observatory Observatory for Millikin University U-46 Observatory Observatory for the Elgin School District William C. Shaw Sky Lab Observatory for Southern Illinois University
