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HD 156674


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Pulkovo compilation of radial velocities for 35495 stars in a common system.
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Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Subtittle: Radial velocities: The Wilson-Evans-Batten catalogue.
We give a common version of the two catalogues of Mean Radial Velocitiesby Wilson (1963) and Evans (1978) to which we have added the catalogueof spectroscopic binary systems (Batten et al. 1989). For each star,when possible, we give: 1) an acronym to enter SIMBAD (Set ofIdentifications Measurements and Bibliography for Astronomical Data) ofthe CDS (Centre de Donnees Astronomiques de Strasbourg). 2) the numberHIC of the HIPPARCOS catalogue (Turon 1992). 3) the CCDM number(Catalogue des Composantes des etoiles Doubles et Multiples) byDommanget & Nys (1994). For the cluster stars, a precise study hasbeen done, on the identificator numbers. Numerous remarks point out theproblems we have had to deal with.

Intermediate band, H-beta, and RI photometry of a large sample of stars unbiased with respect to their motion. I - The F-type stars
Intermediate band and H-beta data from a sample of 1000 stars earlierthan type G2 are presented and discussed relative to the stars'luminosities, metal abundances, and motion. Two groups of stars areconsidered, one within 10 arcsec of the South Galactic Pole and 8.5-8.6mag stars contained in the Moore-Paddock (1950) and Wayman (1960)samples (MP-W). The MP-W stars are mainly old disk population stars withmetal abundances of 4-0.25 solar values. Possible age-abundancedistribution-luminosity connections are explored, as are techniques forseparating old and young disk population objects.

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Datos observacionales y astrométricos

Constelación:Escorpio
Ascensión Recta:17h20m53.69s
Declinación:-42°39'10.3"
Magnitud Aparente:8.504
Distancia:89.047 parsecs
Movimiento Propio en Ascensión Recta:5.8
Movimiento Propio en Declinación:-32.2
B-T magnitude:9.084
V-T magnitude:8.552

Catálogos y designaciones:
Nombres Propios   (Edit)
HD 1989HD 156674
TYCHO-2 2000TYC 7891-123-1
USNO-A2.0USNO-A2 0450-27168158
HIPHIP 84885

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