NGC 3680

Number of stars per data source

	Reference  224 :  143 stars
	Reference  358 :  428 stars

References

 224
Bruntt H., Frandsen S., Kjeldsen H., Andersen M.I.
(1999) Astron. Astrophys. Suppl. 140, 135
Stromgren photometry of the open clusters NGC 6134 and ngc 3680
1999A&AS..140..135B
 358
Anthony-Twarog B.J., Twarog B.A.
(2004) Astron. J. 127, 1000
uvby CaHbeta CCD photometry of clusters. IV. Solving the riddle of NGC 3680
2004AJ....127.1000A