NGC 6231
Number of stars per data source
Reference 26 : 3 stars
Reference 74 : 1 star
Reference 100 : 2 stars
References
- 26
- Feinstein A., Ferrer O.E.
- (1968) Publ. Astron. Soc. Pacific 80, 410
- The Open Cluster NGC 6231
- 1968PASP...80..410F
- 74
- Forte J.C.
- (1978) Astron. J. 83, 1199
- The Reddening Law in Carina OB1
- 1978AJ.....83.1199F
- 100
- Fernie J.D.
- (1983) Astrophys. J. Suppl. 52, 7
- New UBVRI Photometry for 900 Supergiants
- 1983ApJS...52....7F