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HD 88970


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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:Ιστία
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:
Proper Names   (Edit)
HD 1989HD 88970
TYCHO-2 2000TYC 8604-226-1
USNO-A2.0USNO-A2 0300-09081653
HIPHIP 50158

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