NGC 2439
Number of stars per data source
Reference 99 : 6 stars
Reference 214 : 1 star
References
- 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