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HD 31875


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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.

Positional reference stars in the Magellanic Clouds
The equatorial coordinates are determined of 926 stars (mainly ofgalactic origin) in the direction of the Magellanic Clouds at the meanepoch T = 1978.4 with an overall accuracy characterized by the meanvalues of the O-C coordinates, Sa = 0.35 arcsec and Sd = 0.38 arcsec,calculated from the coordinates of the Perth reference stars. Thesevalues are larger than the accuracy expected for primary standard stars.They allow the new positions to be considered as those of reliablesecondary standard stars. The published positions correspond to anunquestionable improvement of the quality of the coordinates provided inthe current catalogs. This study represents an 'astrometric step' in thestarting of a 'Durchmusterung' of the Magellanic Clouds organized by deBoer (1988, 1989).

Radial Velocities and three-colour photometry of 52 stars with large proper motions
Abstract image available at:http://adsabs.harvard.edu/abs/1965MNRAS.129...63P

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Osservazione e dati astrometrici

Costellazione:Dorado
Ascensione retta:04h55m06.84s
Declinazione:-62°47'43.4"
Magnitudine apparente:7.973
Distanza:166.667 parsec
Moto proprio RA:12.5
Moto proprio Dec:74.8
B-T magnitude:8.127
V-T magnitude:7.986

Cataloghi e designazioni:
Nomi esatti
HD 1989HD 31875
TYCHO-2 2000TYC 8881-158-1
USNO-A2.0USNO-A2 0225-01425996
HIPHIP 22861

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