William Joseph Hussey (August 10, 1862 - October 28, 1926) was an American astronomer noted for the discovery and study of narrow binary stars. Between 1898 and 1899 he observed all the binary stars discovered by Otto Struve with a minimum of 3 observations each. His expertise and efficiency allowed for 1920 observations in a year, among which he managed to see 80 in one night. In 1906 he was awarded the Lalande Gold Medal by the French Academy of Sciences for his career; until 1905, discovered and measured 1327 narrow binary stars. Decades after his death, in 1973, the International Astronomical Union gave the approval so that its last name designated to the crater Hussey of the planet Mars. Notes and

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