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 Buenos Aires, unpublished)