NGC 6940
Number of stars per data source
Reference 44 : 185 stars
Reference 47 : 7 stars
Reference 50 : 6 stars
Reference 51 : 25 stars
Reference 78 : 24 stars
References
- 44
- Larsson-Leander G.
- (1960) Stockholm Obs.Ann. 20 no 9
- A study of the galactic cluster NGC 6940
-
- 47
- Geyer E.H., Nelles B.
- (1985) Astron. Astrophys. Suppl. 62, 301
- Galactic cluster star radial velocities obtained with a focal reducer field spectrograph
- 1985A&AS...62..301G
- 50
- Cannon A.J., Pickering E.C.
- (1918-1924), Ann. Obs. Harvard Coll. Obs. 91 to 99 and 100
- Henry Draper catalogue and extension
-
- 51
- Cannon A.J., Mayall W.M.
- 1949) Ann. Harvard Coll. Obs. 112
- Henry Draper extension 2
-
- 78
- Vasilevskis S., Rach R.A.
- (1957) Astron. J. 62, 175
- Relative proper motions of stars in the region of the open cluster NGC 6940
- 1957AJ.....62..175V