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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.
| The spatial distribution of young stars in VELA (l=250 to 284).
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1977A&AS...27..343D&db_key=AST
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Observation and Astrometry data
| Constellation: | Segel des Schiffs |
| Right ascension: | 10h14m19.65s |
| Declination: | -55°08'26.0" |
| Apparent magnitude: | 8.147 |
| Distance: | 416.667 parsecs |
| Proper motion RA: | -14.1 |
| Proper motion Dec: | 3.2 |
| B-T magnitude: | 8.095 |
| V-T magnitude: | 8.143 |
Catalogs and designations:
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