Affiliation: | 1. Boyd Observatory, Miami, Florida, USA 2. Dyer Observatory, Vanderbilt University, Nashville, USA 4. Fairborn Observatory, Fairborn, Ohio, USA 5. Hickox Observatory, Chagrin Falls, Ohio, USA 6. Hopkins-Phoenix Observatory, Phoenix, Arizona, USA 7. Keystone Junior College Observatory, Scranton, Pennsylvania, USA 8. Krisciunas Observatory, San Jose, California, USA 9. Kutztown State College Observatory, Kutztown, Pennsylvania, USA 10. Landis Observatory, Locust Grove, Georgia, USA 11. Louth Observatory, Sedro Woolley, Washington, USA 12. Scuppernong Observatory, Dousman, Wisconsin, USA 13. Skillman Observatory, College Park, Maryland, USA 14. Veen Observatory, Grand Rapids, Michigan, USA
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