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