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HD 109840


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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

A catalog of far-ultraviolet point sources detected with the fast FAUST Telescope on ATLAS-1
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Vacuum ultraviolet imagery of the Virgo cluster region
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Observation and Astrometry data

Constellation:Παρθένος
Right ascension:12h37m51.82s
Declination:+04°17'19.0"
Apparent magnitude:6.987
Distance:107.759 parsecs
Proper motion RA:-26.2
Proper motion Dec:-30.2
B-T magnitude:7.089
V-T magnitude:6.996

Catalogs and designations:
Proper Names
HD 1989HD 109840
TYCHO-2 2000TYC 292-948-1
USNO-A2.0USNO-A2 0900-07196884
HIPHIP 61628

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