Trumpler 27

Number of stars per data source

	Reference  100 :    1 star
	Reference  106 :   19 stars
	Reference  334 :   14 stars
	Reference  390 :    1 star
	Reference  426 :    1 star
	Reference  999 :    1 star

References

100: Imhoff C.L., Keenan P.C.; (1976) Astrophys. J. 205, 455; The luminosity of the very red supergiant near the cluster Tr 27; 1976ApJ...205..455I
106: Moffat A.F.J., FitzGerald M.P., Jackson P.D.; (1977) Astrophys. J. 215, 106; Trumpler 27: a heavily reddened young open cluster with blue and red supergiants; 1977ApJ...215..106M
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
390: The P.S., Tjin a Djie H.R.E., Wamstecker W.; (1980) Astron. Astrophys. 84, 263; Tr27-28: A WC9-type stars with large infrared excess; 1980A&A....84..263T
426: Drilling J.S., Perry C.L.; (1981) Astron. Astrophys. Suppl. 45, 439; Spectral types and radial velocities of southern OB+ stars; 1981A&AS...45..439D
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