Ruprecht 55
Number of stars per data source
Reference 1 : 1 star
Reference 33 : 1 star
Reference 128 : 19 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)
-
- 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