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Bonner Dürchmusterung (BD)

A star atlas and catalogue listing the positions and magnitudes of 324,188 stars in the northern hemisphere to Dec. 2° S and ninth magnitude. It was compiled by Friedrich Argelander in Bonn between 1859 and 1862, and extended by Eduard Schönfeld with a supplement of 133,659 southern stars to Dec. -23° S in 1886. Stars are numbered and designated in declination zones, for example "BD +12° 1438". Later came two more large southern star catalogues: the Cordoba Dürchmusterung produced between 1892 and 1932, and the Cape Photographic Dürchmusterung between 1895 and 1900.

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