Results for "Washington (D.C.)"
Operation Moonwatch Event, Biloxi, Mississippi
- Date: c. 1958
- Creator: Unknown
- Creator: Unknown
Lewis R. Gibbes's Letter to Joseph Henry (March 1, 1845)
- Date: March 1, 1845
- Creator: Gibbes, Lewis R,Joseph Henry Papers Project
- Creator: Gibbes, Lewis R,Joseph Henry Papers Project
Observatory on Mount St. Katherine, Egypt
- Date: c. 1933
- Creator: Unknown
- Creator: Unknown
Tyrone Solar Station, Burro Mountain, NM
- Date: c. 1940
- Creator: Unknown
- Creator: Unknown
Lewis R. Gibbes's Letter to Joseph Henry (June 30, 1845)
- Date: June 30, 1845
- Creator: Gibbes, Lewis R,Joseph Henry Papers Project
- Creator: Gibbes, Lewis R,Joseph Henry Papers Project
Super-Schmidt Camera Installation in New Mexico
- Date: c. 1960
- Creator: Unknown
- Creator: Unknown
Constructing 84-foot Radio Telescope
- Date: c. 1968
- Creator: Smithsonian Astrophysical Observatory
- Creator: Smithsonian Astrophysical Observatory
Postcard of Sun Tower at Mt. Wilson
- Date: c. 1930s
- Creator: Unknown
- Creator: Unknown
Building Shelter at Mt. Whitney, California
- Date: 1909
- Creator: Unknown
- Creator: Unknown
Standing (left to right): Edmund Ezra Day (1883-1951), U.S. Senator Elbert Duncan Thomas (1883-1953), Harlow Shapley (1885-1972). Standing on chair: Kirtley Fletcher Mather (1888-1978)
- Date: 1947 2/23/1947
SAO Shelter Atop Mount Whitney
- Date: 1909
- Creator: Unknown
- Creator: Unknown
SAO Station Atop Mount Whitney
- Date: 1909
- Creator: Unknown
- Creator: Unknown
