Haleakalā Observatory

The Haleakalā Observatory, also known as the Haleakalā High Altitude Observatory Site, is Hawaii's first astronomical research observatory. It is located on the island of Maui and is owned by the Institute for Astronomy of the University of Hawaiʻi, which operates some of the facilities on the site and leases portions to other organizations. Tenants include the Air Force Research Laboratory (AFRL) and the Las Cumbres Observatory Global Telescope Network (LCOGTN). At over 3,050 meters (10, 010 ft) in elevation, the summit of Haleakalā is above one third of the Earth's troposphere and has excellent astronomical seeing conditions. Under very clear conditions, the complex is visible from Makakilo on the island of Oahu, over 200km away.

Observatory data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).