NGC 7654

Number of stars per data source

	Reference   25 :   33 stars
	Reference   33 :   27 stars
	Reference   50 :    3 stars
	Reference   53 :    1 star

25: Zug R.S.; (1933) Lick Obs. Bull. 16, 119; An investigation of color excess in galactic star clusters
33: Lundby A.; (1946) Uppsala Astr. Obs. Ann. 1 no 10; On the proper motions of stars and the absorption of light in the region of the open cluster Messier 52
50: Cannon A.J., Pickering E.C.; (1918-1924), Ann. Obs. Harvard Coll. Obs. 91 to 99 and 100; Henry Draper catalogue and extension
53: Schwassmann A., van Rhijn P.J.; (1935-1953) Hamburger Sternw. Bergedorf vol. 1 - 5; Bergedorfer Spektral-Durchmusterung der 115 nordlichen Kapteynschen Eichfelder