NGC 6281
Number of stars per data source
Reference 16 : 37 stars
Reference 50 : 2 stars
Reference 51 : 6 stars
References
- 16
- Bolton C.T., Herbst W.
- (1976) Astron. J. 81, 339
- Photometry of stars near 3U1700-37=HD 153919 and 3U0933-40=HD 77581
- 1976AJ.....81..339B
- 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
-