NGC 6405

Number of stars per data source

	Reference    9 :   22 stars
	Reference   46 :    5 stars
	Reference   50 :   25 stars
	Reference   51 :   56 stars

9: Rohlfs K., Schrick K.W., Stock J.; (1959) Z. Astrophys. 47, 15; Lichtelektrische Dreifarben-Photometrie von NGC 6405 (M6); 1959ZA.....47...15R
46: Wallenquist A.; (1931) Ann. Boscha Sterrenw. Lembang III no 3; A study of the variation of the space density in the direction of southern galactic clusters on the basis of a spectral investigation white 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