Pleiades

Number of stars per data source

	Reference   11 :    3 stars
	Reference   50 :  392 stars

11: Walraven Th., Walraven J.H.; (1977) Astron. Astrophys. Suppl. 30, 245; Five channel photometric observations of stars in the Magellanic Clouds and in the Milky Way; 1977A&AS...30..245W
50: van Leeuwen F., Alphenaar P., Brand J.; (1986) Astron. Astrophys. Suppl. 65, 309; A VBLUW photometric survey of the Pleiades cluster; 1986A&AS...65..309v