Collinder 69

Number of stars per data source

	Reference   50 :   11 stars
	Reference   51 :   22 stars
	Reference  148 :   33 stars

50: Cannon A.J., Pickering E.C.; (1918-1924), Ann. Obs. Harvard Coll. Obs. 91 to 99 and 100; Henry Draper catalogue and extension
51: Cannon A.J., Mayall W.M.; 1949) Ann. Harvard Coll. Obs. 112; Henry Draper extension 2
148: Barrado y Navascues D., Stauffer J.R., Bouvier J., Jayawardhana R., Cuillandre J.-C.; (2004) Astrophys. J. 610, 1064; The substellar population of the young cluster lambda Orionis; 2004ApJ...610.1064N