NGC 6031

Number of stars per data source

	Reference  191 :  122 stars
	Reference  326 :    4 stars

References

 191
Skiff B.
(1998) Priv. Comm.
Coordinates from the GSC and USNO-A1.0 catalogues in the field of open clusters
 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