NGC 6823

Number of stars per data source

	Reference   25 :    3 stars
	Reference   51 :   14 stars
	Reference   56 :  104 stars

References

 25
Zug R.S.
(1933) Lick Obs. Bull. 16, 119
An investigation of color excess in galactic star clusters
 51
Cannon A.J., Mayall W.M.
1949) Ann. Harvard Coll. Obs. 112
Henry Draper extension 2
 56
Kuznetsov V.I.
(1981) Astrometriia i Astrofizika 45, 53
Spectral classification of stars up to 15.0m around the cluster NGC 6823