NGC 6530

Number of stars per data source

	Reference   41 :    1 star
	Reference  114 :    2 stars
	Reference  164 :    2 stars
	Reference  188 :    1 star
	Reference  190 :    5 stars
	Reference  291 :    8 stars
	Reference  547 :    1 star

References

 41

Crawford D.L., Barnes J.V., Golson J.C.

(1971) Astron. J. 76, 621

Four-color and Hbeta photometry for bright B-type stars in the southern hemisphere

1971AJ.....76..621C

 114

Morrison N.D.

(1975) Astrophys. J. 200,113

Photometry of O-type stars,interpreted with reference to model atmospheres

1975ApJ...200..113M

 164

Gronbech B., Olsen E.H.

(1977) Astron. Astrophys. Suppl. 27, 443

Photoelectric Hbeta photometry for bright O to G0 type stars south of declination +10

1977A&AS...27..443G

 188

Zinn R.J.

(1970) Astrophys. J. 162,909

The temperature dependence of Hbeta strength in O stars

1970ApJ...162..909Z

 190

Klare G., Neckel T.

(1977) Astron. Astrophys. Suppl. 27, 215

UBV Hbeta and polarization measurements of 1660 southern OB stars

1977A&AS...27..215K

 291

Chini R., Neckel th.

(1981) Astron. Astrophys. 102, 171

UBV and Hbeta Observations of stars towards M 8

1981A&A...102..171C

 547

Winkler H.

(1997) Mon. Not. R. Astron. Soc. 287, 481

Red and infrared colours of B stars and the reddening law in the Galaxy

1997MNRAS.287..481W