The 60-Foot Solar Tower

The 60-Foot Solar Tower- The HiDHN project is a network of two sites whose primary purpose is to study the high order oscillations of the sun in the narrow sodium D-line wavelengths. The two sites, Mt. Wilson Observatory, above the city of Pasadena in California and the Crimean Astrophysical Observatory (CrAO)(US mirror site) in the Ukraine, study solar oscillations to develop a model of the internal structure of the sun(HiDHN)