NGC 1817

Number of stars per data source

	Reference  286 :   24 stars
	Reference  550 :   59 stars
	Reference  821 :   19 stars

286: Harris G.L.H., Harris W.E.; (1977) Astron. J. 82, 612; The Hyades-age cluster NGC 1817; 1977AJ.....82..612H
550: Mermilliod J.-C., Latham D.W., Glushkova E.V., Ibrahimov M.A., Batirshinova V.M., Stefanik R.P., James D.J.; (2003) Astron. Astrophys. 399, 105; Red giants in open clusters X. NGC 1817; 2003A&A...399..105M
821: Purgathofer A.; (1964) Ann. Univ. Sternw. Wien 26 no 2; Dreifarben Photometrie in offenen Sternhaufen sowie in zwei Sternfelden in Cygnus