Pismis 20
Number of stars per data source
Reference 213 : 1 star
Reference 273 : 2 stars
Reference 334 : 7 stars
Reference 425 : 5 stars
Reference 439 : 1 star
Reference 440 : 1 star
Reference 486 : 1 star
Reference 847 : 4 stars
Reference 985 : 8 stars
References
- 213
- Garrison R.F., Hiltner W.A., Schild R.E.
- (1977) Astrophys. J. Suppl. 35, 111
- MK spectral classifications for southern OB stars
- 1977ApJS...35..111G
- 273
- Crampton D.
- (1971) Astron. J. 76, 260
- Observations of stars in HII regions: Spectral classification and UBV photometry
- 1971AJ.....76..260C
- 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
- 425
- FitzGerald M.P., Luiken M., Maitzen H.M., Moffat A.F.J.
- (1979) Astron. Astrophys. Suppl. 37, 345
- Analysis of the results of MK classification of 176 stars in 37 southern open clusters
- 1979A&AS...37..345F
- 439
- Moffat A.F.J., Vogt N.
- (1973) Astron. Astrophys. Suppl. 10, 135
- Southern open stars clusters. III. UBV-Hbeta photometry of 28 clusters between galactic longitude 297 and 353
- 1973A&AS...10..135M
- 440
- Lundstrom I., Stenholm B.
- (1984) Astron. Astrophys. Suppl. 58, 163
- Wolf-Rayet stars in open clusters and associations
- 1984A&AS...58..163L
- 486
- Bassino L.P., Dessaunet V.H., Muzzio J.C., Waldhausen S.
- (1982) Mon. Not. R. Astron. Soc. 201, 900
- A photometric and spectroscopic study of faint OB stars in the southern Milky Way
- 1982MNRAS.201..900B
- 847
- Lynga G.
- (1968) Observatory 88, 20
- A study of the cluster Pismis 20
- 1968Obs....88...20L
- 985
- Papadopulos S.
- (1985) Thesis (IAFE, Univ. Buenos Aires, unpublished)
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