NGC 6087

Number of stars per data source

	Reference    7 :    1 star
	Reference   11 :    1 star

7: Walraven J.H., Tinbergen J., Walraven Th.; (1964) Bull. Astron. Inst. Netherlands 17, 520; Five-colour observations of 24 classical cepheids; 1964BAN....17..520W
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