NGC 3680

Number of stars per data source

	Reference   76 :   82 stars
	Reference  347 :   28 stars

References

 76

Eggen O.J.

(1969) Astrophys. J. 155, 439

The old galactic cluster NGC 3680

1969ApJ...155..439E

 347

Anthony-Twarog B.J., Heim E.A., Twarog B.A., Caldwell N.

(1991) Astron. J. 102, 1056

A BV photographic and CCD analysis of the intermediate-age open cluster, NGC 3680

1991AJ....102.1056A