NGC 2439

Number of stars per data source

	Reference   12 :    1 star
	Reference   99 :    6 stars
	Reference  214 :    1 star
	Reference  221 :    1 star
	Reference  786 :    1 star
	Reference  999 :    1 star

References

12: Bidelman W.P.; (1951) Astrophys. J. 113, 304; Spectral classification of stars listed in Miss Payne's catalogue of C stars; 1951ApJ...113..304B
99: White S.D.M.; (1975) Astrophys. J. 197, 67; UBV photometry of NGC 2439; 1975ApJ...197...67W
214: Keenan P.C., Pitts R.E.; (1980) Astrophys. J. Suppl. 42, 541; Revised MK spectral types for G, K, and M stars; 1980ApJS...42..541K
221: Sowell J.R; (1987) Astrophys. J. Suppl. 64, 241; Yellow evolved stars in open clusters; 1987ApJS...64..241S
786: Keenan P.C.; (1973) IAU Symp. 54, 68; Luminosity calibration of giants and supergiants, G0-M5; 1973IAUS...54...68K
999: Houk N., Cowley A.P., Smith-Moore M.; University of Michigan (Ann Arbor) Vol 1 (1975), Vol 2 (1978), Vol 3 (1982), Vol 4 (1988), Vol 5 (1999); The University of Michigan Catalogue of two-dimensional Spectral Types for the HD stars; 1975mctd.book.....H