In 1961 the astronomer George Van Biesbroeck published a catalog of low luminosity stars discovered using the 82 in (2.1 m) Otto Struve refractor telescope of the McDonald Observatory in Texas.
In 1961 the astronomer George Van Biesbroeck published a catalog of low luminosity stars discovered using the 82 in (2.1 m) Otto Struve refractor telescope of the McDonald Observatory in Texas. (en)