Melotte 227

Number of stars per data source

	Reference    1 :   13 stars
	Reference   33 :    7 stars
	Reference  128 :    5 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