IC 4996

Number of stars per data source

	Reference  370 :    4 stars
	Reference  510 : 3497 stars

370: Zacharias N., Urban S.E., Zacharias M.I., Wycoff G.L., Hall D.M., Monet D.G., Rafferty T.J.; (2004) Astron. J. 127, 3043; The Second U.S. Naval Observatory CCD Astrograph Catalog (UCAC2); 2004AJ....127.3042Z
510: Maciejewski G., Niedzielski A.; (2007) Astron. Astrophys. 467, 1065; CCD BV survey of 42 open clusters; 2007A&A...467.1065M