Phoebe Waterman Haas Public Observatory, Astronomical observatory at National Air and Space Museum, Washington, D.C.
The Phoebe Waterman Haas Public Observatory is an astronomical facility located on the east terrace of the National Air and Space Museum. It features a 16-inch Cassegrain reflector telescope paired with equipment designed specifically for observing the sun.
The observatory opened to the public in 2009, supported by a major donation from the Thomas W. Haas Foundation. This timing coincided with global initiatives aimed at advancing astronomy education.
The facility is named after Phoebe Waterman Haas, an astronomer who broke barriers in the field. Visitors can connect with her legacy while engaging directly with the scientific work she represented.
The observatory is available on weekday afternoons and weekends, with additional evening sessions offered once a month. Weather conditions determine whether observations can take place, so clear skies are needed for any viewing activity.
A specialized 4-inch solar telescope allows visitors to examine the sun's photosphere through filtered optics without risk. This dedicated instrument makes direct solar observation accessible to anyone without needing specialized knowledge.
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