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HD 49808

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UBV polarimetry of 361 A- and F-type stars in selected areas We present simultaneous UBV linear polarization measurements for 361 A-and F-type stars with accurate colour excess and distance determination.These stars are distributed in 35 Kapteyn's Selected Areas, covering thethird and fourth quadrants of the galactic plane (\|b\| <= 30degr ).The obtained polarization and the known colour excess are compared. Ananalysis of the polarization distribution as a function of the stellardistance is also performed. Based on observations collected at theEuropean Southern Observatory (ESO), La Silla, Chile.
Mesures de vitesses radiales. VIII. Accompagnement AU sol DU programme d'observation DU satellite HIPPARCOS We publish 1879 radial velocities of stars distributed in 105 fields of4^{\circ} \times 4^{\circ}. We continue the PPO series \cite[(Fehrenbachet al. 1987;]{Feh87} \cite[Duflot et al. 1990, 1992 and 1995),]{Du90}using the Fehrenbach objective prism method. Table 1 only available inelectronic form at CDS via to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/Abstract.html
UBV photoelectric photometry in four southern Milky Way fields Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1970AJ.....75..324W&db_key=AST
Stellar Spectra in Milky way Regions. V.A Region in Monoceros. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1956ApJS....2..271M&db_key=AST

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Osservazione e dati astrometrici

Costellazione:	Unicorno
Ascensione retta:	06^h50^m13.22^s
Declinazione:	+00Â°08'13.4"
Magnitudine apparente:	7.969
Moto proprio RA:	12.1
Moto proprio Dec:	1.2
B-T magnitude:	8.413
V-T magnitude:	8.006

Cataloghi e designazioni:

Nomi esatti	(Edit)
HD 1989	HD 49808
TYCHO-2 2000	TYC 148-283-1
USNO-A2.0	USNO-A2 0900-03629904

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