NGC 3680
Number of stars per data source
Reference 78 : 4 stars
References
78
Mermilliod J.-C., Andersen J., Nordstrom B., Mayor M.
(1995) Astron. Astrophys. 299, 53
Red giants in open clusters. IV. NGC 3680 and Ic 4651
1995A&A...299...53M