NGC 3680

Number of stars per data source

	Reference   72 :   10 stars

References

 72
Eggen O.J.
(1983) Astron. J. 88, 813
Calibrations of the reddening, luminosity, and abundance of old disk giants from photometry of stars in M67, NGC 3680, NGC 2420, and the Wolf 630 and Arcturus groups
1983AJ.....88..813E