IC 2157

Number of stars per data source

	Reference  191 :   12 stars
	Reference  226 : 2005 stars
	Reference  326 :   19 stars

References

 191

Skiff B.

(1998) Priv. Comm.

Coordinates from the GSC and USNO-A1.0 catalogues in the field of open clusters

 226

Kharchenko N., Andruk V., Schilbach E.

(1997) Astron. Nachr. 318, 253

Schmidt survey in the galactic anticentre direction. 1. Investigation of open clusters

1997AN....318..253K

 326

Hog E., Fabricius C., Makarov V.V., Urban S., Corbin T., Wycoff G., Bastian U., Schwekendiek P., Wicenec A.

(2000) Astron. Astrophys. 357, L27

The Tycho-2 Catalogue

2000A&A...355L..27H