IC 4665

Number of stars per data source

	Reference   24 :    4 stars
	Reference   68 :    4 stars

24: Crampton D., Hill G., Fisher W.A.; (1976) Astrophys. J. 204, 502; The binary frequency of IC 4665; 1976ApJ...204..502C
68: Morrell N., Abt H.A.; (1991) Astrophys. J. 378, 157; Reinvestigation of the binary frequency in the open cluster IC 4665; 1991ApJ...378..157M