NGC 957

Number of stars per data source

	Reference    2 :   91 stars
	Reference  243 :   67 stars

References

 2

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

 243

Gerasimenko T.P.

(1991) Soviet Astron. 35, 553

Open star cluster NGC 957

1991SvA....35..553G