NGC 6520

Number of stars per data source

	Reference  617 :    3 stars
	Reference  622 :   26 stars

617: Mermilliod J.-C., Mayor M., Udry S.; (2008) Astron. Astrophys. 485, 303; Red giants in open clusters. XIV. Mean radial velocities for 1309 stars and 166 open clusters; 2008A&A...485..303M
622: Odell A.P.; (2014) Astron. J. 147, 7; A New Look at Open Cluster NGC 6520; 2014AJ....147....7O