astrography
/əˈstrɒɡrəfi/Astronomy
noun
The description of the fixed stars; the determination of the positions of the stars; (in later use) specifically the use of an astrograph.
Origin
Mid 18th century; earliest use found in Benjamin Martin (bap. 1705, d. 1782), lecturer on science and maker of scientific instruments. From astro- + -graphy.