IC 4651

Number of stars per data source

	Reference   11 :  114 stars
	Reference   32 :  165 stars

11: Anthony-Twarog B.J., Mukherjee K., Cladwell N., Twarog B.A.; (1988) Astron. J. 95, 1453; BV photographic and CCD photometry of IC 4651; 1988AJ.....95.1453A
32: Kjeldsen H., Frandsen S.; (1991) Astron. Astrophys. Suppl. 87, 119; Stellar photometric stability. II. Age and distances for 13 open clusters with time series observations; 1991A&AS...87..119K