These are public observatories or government/educational observatories that are using 4″, f/15 Polarex or Unitron telescopes as part of their observing programs. See Information Page under the Links Page on each of the highlighted* observatories for additional details:
- Boothe Memorial Astronomical Society, CT*
- Bosscha Observatory, Indonesia*
- College of Southern Nevada Observatory, NV*
- Custer Institute and Observatory, NY*
- Edinboro University Observatory, PA*
- George H. Lutz Observatory, CA*
- GRO Observatory, WY*
- Haggart Observatory, OR
- National Observatory of Athens, Mount Penteli station
- Neilsen Observatory, OH*
- Palomar College, CA*
- Rainwater Observatory, MS*
- San Mateo College, CA*