- Centennial Observatory
- Fick Observatory
- Indiana University Goethe Link
- James Clerk Maxwell Telescope
- John H Witte Observatory
- Joint Astronomy Ctr
- National Astronomical
- National Astronomical
- National Radio Astronomy
- National Radio Astronomy
- Powell Observatory
- Rockford Park District
- St Ambrose Observatory
- W M Keck Observatory
- Weiskopf Observatory
