NGC 6819

Number of stars per data source

	Reference  191 :    1 star
	Reference  370 :   27 stars
	Reference  385 :   10 stars
	Reference  458 :  167 stars
	Reference  462 : 7761 stars

191: Skiff B.; (1998) Priv. Comm.; Coordinates from the GSC and USNO-A1.0 catalogues in the field of open clusters
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
385: Skrutskie M.F., Cutri .M., Weinberg M.D., Schneider S., Carpenter J.M., et al.; (2006) Astron. J. 131, 1163; The Two Micron All Sky Survey (2MASS); 2006AJ....131.1163S
458: Street R.A., Horne K., Lister T.A., Penny A., Tsapras Y., Quirrenbach A., Safizadeh N., Cooke J., Mitchell D., Collier Cameron A.; (2002) Mon. Not. R. Astron. Soc. 330, 737; Variable stars in the field of open cluster NGC 6819; 2002MNRAS.330..737S
462: Street R.A., Horn K., Lister T.A., Penny A., Tsapras Y., Quirrenbach A., Safizadeh N., Cooke J., Mitchell D., Collier Cameron A.; (2005) Mon. Not. R. Astron. Soc. 358, 795; Variable stars in the field of open clusters NGC 6819 - II; 2005MNRAS.358..795S