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HD 168439


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Radial velocities. Measurements of 2800 B2-F5 stars for HIPPARCOS
Radial velocities have been determined for a sample of 2930 B2-F5 stars,95% observed by the Hipparcos satellite in the north hemisphere and 80%without reliable radial velocity up to now. Observations were obtainedat the Observatoire de Haute Provence with a dispersion of 80Ä,mm(-1) with the aim of studying stellar and galactic dynamics.Radial velocities have been measured by correlation with templates ofthe same spectral class. The mean obtained precision is 3.0 km s(-1)with three observations. A new MK spectral classification is estimatedfor all stars. Based on observations made at the Haute ProvenceObservatory, France and on data from The Hipparcos Catalogue, ESA.Tables 4, 5 and 6 are only available in electronic form at the CDS viaanonymous ftp to cdsarc.u-strasbg.fr or viahttp://cdsweb.u-strasbg.fr/Abstract.htm

Radial-velocity measurements. V - Ground support of the HIPPARCOS satellite observation program
The paper presents data on 1070 radial velocity measurements of starsdistributed in 39 fields measuring 4 deg x 4 deg. The PPO series ofFehrenbach et al. (1987) and Duflot et al. (1990) is continued using theFehrenbach objective prism method.

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Osservazione e dati astrometrici

Costellazione:Lira
Ascensione retta:18h17m48.40s
Declinazione:+40°18'12.7"
Magnitudine apparente:7.304
Distanza:196.464 parsec
Moto proprio RA:-1.7
Moto proprio Dec:6.1
B-T magnitude:7.369
V-T magnitude:7.31

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 168439
TYCHO-2 2000TYC 3107-2720-1
USNO-A2.0USNO-A2 1275-09905092
HIPHIP 89654

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