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