NGC 6231

Number of stars per data source

	Reference   23 :    1 star
	Reference   24 :    5 stars
	Reference   81 :   18 stars
	Reference   88 :    1 star
	Reference   90 :    1 star
	Reference  271 :    9 stars
	Reference  275 :    5 stars
	Reference  300 :   26 stars
	Reference  400 :   13 stars
	Reference  430 :   20 stars
	Reference  478 :    1 star
	Reference  578 :   26 stars
	Reference  846 :    1 star
	Reference  983 :    3 stars
	Reference  999 :    1 star

References

23: Morgan W.W., Whitford A.E., Code A.D.; (1953) Astrophys. J. 118, 318; Studies in galactic structure. I. A preliminary determination of the space distribution of the blue giants; 1953ApJ...118..318M
24: Morgan W.W., Gonzalez G., Gonzalez G.; (1953) Astrophys. J. 118, 323; Blue giants in the neighborhood of NGC 6231; 1953ApJ...118..323M
81: Schild R.E., Hiltner W.A., Sanduleak N.; (1969) Astrophys. J. 156, 609; A spectroscopic study of the association Scorpius OB1; 1969ApJ...156..609S
88: Conti P.S., Alschuler W.R.; (1971) Astrophys. J. 170, 325; Spectroscopic studies of O-type stars. I. Classification and absolute magnitudes; 1971ApJ...170..325C
90: Herbig G.H.; (1972) Astrophys. J. 174, L89; A highly reddened star near NGC 6231; 1972ApJ...174....0H
271: Schild R.E., Neugebauer G., Westphal J.A.; (1971) Astron. J. 76, 237; Interstellar absorption and color excesses in Sco OB-1; 1971AJ.....76..237S
275: Walborn N.R.; (1972) Astron. J. 77, 312; Spectral classification of OB stars in both hemisphere and the absolute-magnitude calibration; 1972AJ.....77..312W
300: Garrison R.F., Schild R.E.; (1979) Astron. J. 84, 1020; The main sequence of NGC 6231; 1979AJ.....84.1020G
400: Garcia B., Mermilliod J.-C.; (2001) Astron. Astrophys. 368, 122; High-mass binaries in the very young open cluster NGC 6231; 2001A&A...368..122G
430: Perry C.L., Hill G., Younger P.F., Barnes J.V.; (1990) Astron. Astrophys. Suppl. 86, 415; A study of Sco OB1 and NGC 6231. I. New observational data; 1990A&AS...86..415P
478: Buscombe W.; (1969) Mon. Not. R. Astr. Soc. 144, 31; Line strengths for southern OB stars - II; 1969MNRAS.144...31B
578: Levato H., Malaroda S.; (1980) Publ. Astr. Soc. Pacific 92, 323; Spectral types in the open cluster NGC 6231; 1980PASP...92..323L
846: Sahade J.; (1958) Observatory 78, 79; On the nature of the Wolf-Rayet stars; 1958Obs....78...79S
983: Houck, T.E.; (1956) PhD Dissertation; The i Scorpii and i Crucis Associations of Early - Stars; 1956PhDT.........1H
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