NGC 2539
Number of stars per data source
Reference 1 : 3 stars
Reference 33 : 2 stars
Reference 71 : 226 stars
Reference 98 : 2 stars
Reference 120 : 1 star
Reference 128 : 119 stars
References
- 1
- Egret D.
- (1986) Private Communication
- Coordinates from SIMBAD (mainly SAO)
-
- 33
- Egret D.
- (1986) Private communication
- Coordinates from SIMBAD (other than SAO)
-
- 71
- Mermilliod J.-C.
- (1988)
- Positions measured with the Hipad tablet
-
- 98
- Tucholke H.-J.
- (1989) Astron. Astrophys. Suppl. 78, 187
- Positions of southern open cluster stars proposed for the Hipparcos mission
- 1989A&AS...78..187B
- 120
- Mermilliod J.-C.
- (1989) unpublished
- Coordinates computed from HIPAD measurements
-
- 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