Original: Palomar Observatory [ ] is a privately owned observatory located in San Diego County, California, 90 miles (145 km) southeast of Pasadena's Mount Wilson Observatory, on Palomar Mountain in the Palomar Mountain Range.
Simplified: Palomar Observatory is a privately owned observatory in San Diego County, California, 90 miles (145 km) southeast of Mount Wilson Observatory, on Palomar Mountain in the Palomar Mountain Range.