King 12

Number of stars per data source

	Reference  104 :    3 stars
	Reference  128 :   19 stars

104: Hardorp J., Rohlfs K., Slettebak A., Stock J.; (1959) Hamburger Sternw.; Luminous stars in the northern Milky Way I - VI
128: Lasker B.M., Russel J.N., Jenkner H., Sturch C.R., McLean B.J., Shara M.M.; (1990) Astron. J. 99, 2019; The HST guide star catalogue, version 1.0; 1990AJ.....99.2019L