NGC 6819

Number of stars per data source

	Reference   63 :  474 stars
	Reference   84 :  890 stars

References

 63
Burkhead M.S.
(1971) Astron. J. 76, 251
Photometric observations of the star cluster NGC 6819
1971AJ.....76..251B
 84
Auner G.
(1974) Astron. Astrophys. Suppl. 13, 143
Photographic photometry of the galactic cluster NGC 6819
1974A&AS...13..143A