What is "hahn"

Hahn is a lunar impact crater that is located near the northeastern limb of the Moon. The crater appears oval when viewed from the Earth due to foreshortening. It is located less than one crater diameter to the southeast of Berosus, a slightly smaller formation.

The inner wall of Hahn contains a system of terraces, particularly in the southern half. A smaller crater lies across the northwest rim, forming a break that reaches the interior floor. The interior floor has a region of lower albedo in the northern half, making it darker in appearance than the southern section of the floor. At the midpoint of the interior is an elongated central ridge, with the longer extent oriented north–south. The floor is also marked by several tiny craterlets.

Hahn may refer to:

Hahn is a German surname. Notable people with the surname include:

• Alfred Hahn (1890–1964), architect in Toledo, Ohio, USA
• Archie Hahn (1880–1955), American sprinter
• August Hahn (1792–1863), German Protestant theologian
• Bernard Hahn (1860-1931), American politician
• Billy Hahn (born 1955), American basketball coach
• Carl Hugo Hahn (1818–1895), German missionary in Namibia
• Carl Wilhelm Hahn (1786–1835), German zoologist
• Joe Hahn (born 1977), DJ of Linkin Park
• Johannes Hahn (born 1957), Austrian politician
• Dave Hahn (born 1959), guitarist, singer/songwriter
• David Hahn, the "Radioactive Boy Scout"
• David Hahn (Nebraska), 2006 Democratic candidate for Governor of Nebraska
• David Hahn (cartoonist), cartoonist
• Edith Hahn Beer (1914–2009), Jewish Holocaust survivor
• Erwin Hahn (born 1921), U.S. physicist, best known for his work on nuclear magnetic resonance (NMR)
• Frank Hahn (1925–2013), Cambridge economist
• Hans Hahn (mathematician) (1879–1934), Austrian mathematician
• Hans "Assi" Hahn, (1914-1982), German World War II fighter ace
• Hilary Hahn (born 1979), violinist
• James K. Hahn (born 1950), politician, 40th Mayor of Los Angeles, California
• Janice Hahn, politician, member of the Los Angeles City Council
• Jerri Ariel Farias Hahn, Brazilian footballer
• Jessica Hahn (born 1959), celebrity, nude model, and church secretary
• Jody Margolin Hahn, American television director
• Jörg-Uwe Hahn (born 1956), politician
• Kathryn Hahn (born 1974), actress
• Kenneth Hahn (1920–1997), politician, member of the Los Angeles County Board of Supervisors
• Kimberly Hahn (born 1957), Catholic author and apologist
• Kurt Hahn (1886–1974), German teacher and education reformer
• Lloyd Hahn (1898–1983), American middle-distance runner
• Martin Hahn (born 1964), Venezuelan telenovelas writer
• Otto Hahn (1879–1968), German nuclear chemist, discoverer of nuclear fission, Nobel Prize winner (Chemistry 1944), founder of the Max-Planck-Society, peace activist
• Philipp Matthäus Hahn (1739–1790), German priest and inventor
• Reynaldo Hahn (1874–1947), Venezuelan composer and lover of Marcel Proust
• Scott Hahn (born 1957), Catholic writer and apologist
• Wolfgang Hahn (1911–1998), German mathematician

The Hahn is a -high basalt knoll in the district of Schwalm-Eder-Kreis, within the town of Edermünde-Holzhausen, in Hesse, Germany. Like many other basalt outcrops in the West Hesse Depression, it is the neck of an extinct Miocene volcano, the rest has been eroded. A small medieval tower castle once stood on the hill.