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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.
| Walraven photometry of nearby southern OB associations
Homogeneous Walraven (VBLUW) photometry is presented for 5260 stars inthe regions of five nearby southern OB associations: Scorpio Centaurus(Sco OB2), Orion OB1, Canis Major OB1, Monoceros OB1, and Scutum OB2.Derived V and (B - V) in the Johnson system are included.
| Instrumental effects and the Stroemgren photometric system
The extent to which the use of different photometers can affect resultson stellar color indices was investigated by simultaneously observing asample of widely different stars with several uvby photometric systemsavailable at the ESO, La Silla, Chile. In one instance, the ESO 50-cmtelescope and the four-channel photometer at the Danish 50-cm telescopewere used simultaneously. The reductions were performed separately oneach data set, using a linear color transformation procedure. Theresults agree with theoretical investigations which showed thatsubstantial errors can arise from the nonconformity of passbands. It isemphasized that it is necessary to use separate color transformationsfor various stellar types and classes and for different interstellarreddenings.
| Photometric period of the AP star HR 3831
From 32 observations made in February 1977, in the uvby system, aphotometric period P = 1.428 + or - 0.005 day was previously found forthe A7p SrCrEu star HR 3831 = HD 83368. A series of 26 measurements inDecember 1975, a few measurements in December 1978, both also in theStromgren system, and the measurements recently published by Kurtz(1982) in B and V (Johnson system) improve the precision on P. The valueobtained is P = 1.42602 + or - 0.00006 day. The photometric variationswith this period are displayed. As found previously, a null-wavelengthappears in the blue. Kurtz's suggestion that the photometric period isequal to twice the value above does not seem to be justified; however,other considerations favor a rotation period equal to twice thephotometric one.
| Radial velocities of 200 southern B stars
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1965MNRAS.130..281B&db_key=AST
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Observation and Astrometry data
| Constellation: | ほ座 |
| Right ascension: | 09h44m37.34s |
| Declination: | -48°32'55.9" |
| Apparent magnitude: | 6.672 |
| Distance: | 358.423 parsecs |
| Proper motion RA: | -19.9 |
| Proper motion Dec: | 9.2 |
| B-T magnitude: | 6.567 |
| V-T magnitude: | 6.664 |
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