NGC 3680

Number of stars per data source

	Reference  170 :   46 stars
	Reference  213 :  216 stars

References

 170

Piatti A.E., Claria J.J., Bica E.

(1998) Astrophys. J. Suppl. 116, 263

Composite Mv vs (V-I)o diagram for template open clusters

 213

Hawley S.L., Tourtellot J.G., Reid I.N.

(1999) Astron. J. 117, 1341

Low-mass stars in open clusters. I. NGC 2516 and NGC 3680

1999AJ....117.1341H