NGC 663
Number of stars per data source
Reference 467 : 41 stars
Reference 537 : 18 stars
References
- 467
- Tapia M., Costero R., Echevarria J., Roth M.
- (1991) Mon. Not. R. Astr. Soc. 253, 649
- Near-infrared and Stromgren photometry of the open clusters NGC 663, NGC 1502 and NGC 1893
- 1991MNRAS.253..649T
- 537
- Fabregat J., Torrejon J.M., Reig P., Bernabeu G., Busquets J., Marco A., Reglero V.
- (1996) Astron. Astrophys. Suppl. 119, 271
- Be stars in open clusters. I. uvby Beta photometry
- 1996A&AS..119..271F