NGC 6940
Number of stars per data source
Reference 1 : 7 stars
Reference 4 : 19 stars
Reference 33 : 5 stars
Reference 128 : 32 stars
Reference 280 : 241 stars
References
- 1
- Egret D.
- (1986) Private Communication
- Coordinates from SIMBAD (mainly SAO)
-
- 4
- Hoag A.A., Johnson H.L., Iriarte B., Mitchell R.I., Hallam K.L., Sharpless S.
- (1961) Publ. Us. Nav. Obs. XVII part VII, 347
- Photometry of stars in galactic cluster fields
-
- 33
- Egret D.
- (1986) Private communication
- Coordinates from SIMBAD (other than SAO)
-
- 128
- Lasker B.M., Russel J.N., Jenkner H., Sturch C.R., McLean B.J., Shara M.M.
- (1990) Astron. J. 99, 2019
- The HST guide star catalogue, version 1.0
- 1990AJ.....99.2019L
- 280
- Stetson P.B.
- (2000) Publ. Astron. Soc. Pacific 112, 925
- Homogeneous photometry for star clusters and resolved galaxies. II. Photometric standard stars
- 2000PASP..112..925S