- Pittsburgh, Allegheny County, Pennsylvania, United States1
- Plainfield, Union County, New Jersey, United States1
- Potsdam, Germany1
- Rome, Italy2
- Royal Greenwich Observatory, London, England, United Kingdom3
- San Diego County, California, United States57
- Santa Clara, Santa Clara County, California, United States2
- South Hadley, Hampshire County, Massachusetts, United States1
- Stamford, Fairfield County, Connecticut, United States1
- Sweden1
- Topeka, Shawnee County, Kansas, United States2
- Toronto, Ontario, Canada1
- Tucson, Pima County, Arizona, United States15
- Univeristy of Illinois, Illinois, United States1
- University of Alaska, Alaska, United States2
- Victoria, British Columbia, Canada3
- Washington, D.C., United States4
- Williams Bay, Walworth County, Wisconsin, United States3
- Williamstown, Berkshire County, Massachusetts, United States2
- Wilson's Peak, Los Angeles County, California, United States1