NGC 5138

Number of stars per data source

	Reference    1 :    1 star
	Reference   71 :  171 stars
	Reference   98 :    4 stars
	Reference  128 :   12 stars

References

 1
Egret D.
(1986) Private Communication
Coordinates from SIMBAD (mainly 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
 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