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| Uvby-beta observations of 528 type B stars with V between the 8th and 9th magnitude The paper presents uvby-beta measurements of 528 type B stars selectedfrom the SAO Catalog on the basis of two criteria: the spectral types inthe range B3-B5 and mV between the 8th and the 9th magnitude. Reddeningindependent (c1) values are estimated from the spectral classificationand compared to the observed values. No systematic trend with observed(b-y), H-beta, or spectral type appears to be present, but the range of(c1) residuals is surprisingly large. A rather large part of the starshas small beta values, smaller than for the BIa supergiants. Only twoare classified as O stars and most of them have the suffix e, ne, ornne. Most beta values for the O type stars are slightly above the upperlimit of 2.585 m.
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| Line strengths for southern OB stars. IV. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1970MNRAS.148...79B&db_key=AST
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Osservazione e dati astrometrici
Costellazione: | Centauro |
Ascensione retta: | 14h33m36.77s |
Declinazione: | -58°49'14.9" |
Magnitudine apparente: | 7.733 |
Distanza: | 1369.863 parsec |
Moto proprio RA: | -8.2 |
Moto proprio Dec: | -5.5 |
B-T magnitude: | 7.719 |
V-T magnitude: | 7.732 |
Cataloghi e designazioni:
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