NGC 869
Number of stars per data source
Reference 25 : 67 stars
Reference 50 : 11 stars
Reference 132 : 7 stars
References
- 25
- Zug R.S.
- (1933) Lick Obs. Bull. 16, 119
- An investigation of color excess in galactic star clusters
-
- 50
- Cannon A.J., Pickering E.C.
- (1918-1924), Ann. Obs. Harvard Coll. Obs. 91 to 99 and 100
- Henry Draper catalogue and extension
-
- 132
- Bragg A.E., Kenyon S.J.
- (2002) Astron. J. 124, 3289
- H II emission from a complete spectroscopic survey of Be stars in h and chi Persei
- 2002AJ....124.3289B