NGC 2439

Number of stars per data source

	Reference    1 :    1 star
	Reference   16 :   13 stars
	Reference   98 :    1 star
	Reference  113 :    7 stars
	Reference  128 :   27 stars

1: Egret D.; (1986) Private Communication; Coordinates from SIMBAD (mainly SAO)
16: Stephenson C.B., Sanduleak N.; (1971) Publ. Warner Swasey Obs. 1 no 1; Luminous stars in the southern Milky Way
98: Tucholke H.-J.; (1989) Astron. Astrophys. Suppl. 78, 187; Positions of southern open cluster stars proposed for the Hipparcos mission; 1989A&AS...78..187B
113: Lasker B.M., et al; (1988) Astrophys. J. Suppl. 68, 1; The Guide Star Photometric Catalog. I.; 1988ApJS...68....1L
128: Lasker B.M., Russel J.N., Jenkner H., Sturch C.R., McLean B.J., Shara M.M.; (1990) Astron. J. 99, 2019; The HST guide star catalogue, version 1.0; 1990AJ.....99.2019L