NGC 2451

Number of stars per data source

	Reference   15 :    7 stars
	Reference   67 :    9 stars
	Reference   72 :    7 stars

15: Goodenough D.G.; (1970) Bull. American Astron.Soc. 2, 318; Six colour photometry of galactic clusters; 1970BAAS....2..318G
67: Pastoriza M.P., Roepke U.O.; (1983) Astron. J. 88, 1769; DDO photometry on red giants in the open clusters NGC 2232, NGC 2287, and NGC 2451; 1983AJ.....88.1769P
72: Claria J.J.; (1985) Astron. Astrophys. Suppl. 59, 195; Membership and photometric abundance of red evolved stars in open clusters; 1985A&AS...59..195C