NGC 6281
Number of stars per data source
Reference 281 : 1 star
Reference 294 : 2 stars
Reference 999 : 3 stars
References
- 281
- Walborn N.R.
- (1973) Astron. J. 78, 1067
- The space distribution of the O stars in the solar neighborhood
- 1973AJ.....78.1067W
- 294
- Bolton C.T., Herbst W.
- (1976) Astron. J. 81, 339
- Photometry of stars near 3U1700-37=HD 153919 and 3U0900-40=HD 77581
- 1976AJ.....81..339B
- 999
- Houk N., Cowley A.P., Smith-Moore M.
- University of Michigan (Ann Arbor) Vol 1 (1975), Vol 2 (1978), Vol 3 (1982), Vol 4 (1988), Vol 5 (1999)
- The University of Michigan Catalogue of two-dimensional Spectral Types for the HD stars
- 1975mctd.book.....H