NGC 6611
Number of stars per data source
Reference 40 : 25 stars
Reference 50 : 3 stars
Reference 54 : 25 stars
Reference 58 : 11 stars
Reference 71 : 8 stars
Reference 86 : 55 stars
References
- 40
- Trumpler R.J.
- (1950) unpublished
- ue
-
- 50
- Cannon A.J., Pickering E.C.
- (1918-1924), Ann. Obs. Harvard Coll. Obs. 91 to 99 and 100
- Henry Draper catalogue and extension
-
- 54
- Becker F.
- (1929-1938) Publ Astrophys. Obs. Potsdam vol. 27 and 28
- Spektral-Durchmusterung der Kapteyn-Eichfelder des Sudhimmels
-
- 58
- Pronyk I.I.
- (1958) Publ. Krym. Obs. 20, 208
-
-
- 71
- Walker M.F.
- (1961) Astrophys. J. 133, 438
- Studies of extremely young clusters. IV. NGC 6611
- 1961ApJ...133..438W
- 86
- Winter D., Koulis C., The P.S., van den Ancker M.E., Perez M.R., Bibo E.A.
- (1997) Astron. Astrophys. Suppl. 121, 223
- Pre-main sequence candidates in the very young open cluster NGC 6611
- 1997A&AS..121..223W