NGC 6633

Number of stars per data source

	Reference   21 :  498 stars
	Reference  485 :   12 stars

References

 21

Sanders W.L.

(1973) Astron. Astrophys. Suppl. 9, 213

Membership of the open cluster NGC 6633

1973A&AS....9..213S

 485

Baumgardt H., Dettbarn C., Wielen R.

(2000) Astron. Astrophys. Suppl. 146, 251

Absolute proper motions of open clusters. I. Observational data

2000A&AS..146..251B