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HD 161288


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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

Ultraviolet photometry with the Astronomical Netherlands Satellite /ANS/ - Faint blue stars in the halo
Blue stars at high galactic latitudes have been observed with the UVtelescope on board ANS. In this paper a subset of the collected datapertaining to the cooler stars is discussed. Most of them have energydistributions in general agreement with the visual spectral type. Onestar is exceptionally blue, and of seven possible horizontal-branchstars, two have UV energy distributions distinct from main-sequencestars in the sense that they have an excess at 1550 A and a large Balmerjump.

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Observation and Astrometry data

Constellation:Hercules
Right ascension:17h43m15.94s
Declination:+32°59'03.9"
Apparent magnitude:7.74
Distance:214.592 parsecs
Proper motion RA:-6.2
Proper motion Dec:15.8
B-T magnitude:7.893
V-T magnitude:7.753

Catalogs and designations:
Proper Names
HD 1989HD 161288
TYCHO-2 2000TYC 2611-889-1
USNO-A2.0USNO-A2 1200-08595764
HIPHIP 86723

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