Collinder 228

Number of stars per data source

	Reference   36 :    1 star
	Reference   89 :    1 star
	Reference  102 :   11 stars
	Reference  107 :    1 star
	Reference  202 :    2 stars
	Reference  218 :    1 star
	Reference  257 :    1 star
	Reference  269 :    1 star
	Reference  275 :    7 stars
	Reference  334 :   15 stars
	Reference  412 :    1 star
	Reference  416 :    1 star
	Reference  579 :   57 stars
	Reference  771 :    1 star
	Reference  832 :    2 stars
	Reference  999 :    7 stars

References

36: Hoffleit D.; (1956) Astrophys. J. 124, 61; Distance for southern early-type stars specially in Carina and other HII regions; 1956ApJ...124...61H
89: Humphreys R.M., Strecker D.W., Ney E.P.; (1972) Astrophys. J. 172, 75; Spectroscopic and photometric observations of M supergiants in Carina; 1972ApJ...172...75H
102: Herbst W.; (1976) Astrophys. J. 208, 923; On the extinction law in the Carina nebula; 1976ApJ...208..923H
107: Leung K.C., Moffat A.F.J., Seggewiss W.; (1979) Astrophys. J. 231, 742; The massive multiple system HD 93206 (QZ Carinae) in the great Carina nebula; 1979ApJ...231..742L
202: Morgan W.W., Code A.D., Whitford A.E.; (1955) Astrophys. J. Suppl. 2, 41; Studies in galactic structure. II. Luminosity classification for 1270 blue giant stars; 1955ApJS....2...41M
218: Walborn N.R.; (1973) Astrophys. J. 179, 517; Some characteristics of the Eta Carinae complex; 1973ApJ...179..517W
257: Roberts M.S.; (1962) Astron. J. 67, 79; The galactic distribution of the Wolf-Rayet stars; 1962AJ.....67...79R
269: Graham J.A.; (1970) Astron. J. 75, 703; The space distribution of the OB stars in Carina; 1970AJ.....75..703G
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
334: Massey P., DeGioia-Eastwood K., Waterhouse E.; (2001) Astron. J. 121, 1050; The progenitor masses of Wolf-Rayet stars and luminous blue variables determined from cluster turnoffs. II. Results from 12 galactic clusters and OB associations; 2001AJ....121.1050M
412: Humphreys R.M.; (1973) Astron. Astrophys. Suppl. 9, 85; Spectroscopic and photometric observations of luminous stars in Carina-Centaurus (l = 282d - 305d); 1973A&AS....9...85H
416: Thackeray A.D., Andrews P.J.; (1974) Astron. Astrophys. Suppl. 16, 323; A supplementary list of southern O stars; 1974A&AS...16..323T
579: Levato H., Malaroda S.; (1981) Publ. Astr. Soc. Pacific 93, 714; Spectral morphology in the open cluster Collinder 228; 1981PASP...93..714L
771: Pottasch S.; (1956) Bull. Astron. Inst. Netherlands 13, 77; A study of bright rims in diffuse nebulae; 1956BAN....13...77P
832: Feast M.W., Thackeray A.D., Wesselink A.J.; (1957) Mem. R. Astr. Soc. 68, 1; Radial velocities of southern B stars determined at the Radcliffe Observatory; 1957MmRAS..68....1F
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