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HD 222572


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UvbyHbeta_ photometry of main sequence A type stars.
We present Stroemgren uvby and Hbeta_ photometry for a set of575 northern main sequence A type stars, most of them belonging to theHipparcos Input Catalogue, with V from 5mag to 10mag and with knownradial velocities. These observations enlarge the catalogue we began tocompile some years ago to more than 1500 stars. Our catalogue includeskinematic and astrophysical data for each star. Our future goal is toperform an accurate analysis of the kinematical behaviour of these starsin the solar neighbourhood.

Radial-velocity measurements. III - Ground observations accompanying the HIPPARCOS satellite observation program: Measurements of the radial velocities of 391 stars in 12 fields
The radial velocities of 391 stars, obtained with the Fehrenbachobjective prism associated to the Schmidt telescope of the Observatoirede Haute-Provence are presented. These stars belong to fields speciallychosen for containing several Hipparcos input catalog star members. Eachfield is presented independently. The list includes HD and BDidentifiers when available, 1950 coordinates, spectral type, and B and Vmagnitudes as they appear in the CSI catalog, the radial velocity, theprobable error, the number of independent measurements and commentariessuch as known radial velocity and their origin.

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Dades d'Observació i Astrometria

Constel·lació:Pegasus
Ascensió Recta:23h41m34.04s
Declinació:+24°13'25.7"
Magnitud Aparent:7.609
Distancia:234.192 parsecs
Moviment propi RA:52.3
Moviment propi Dec:-14.7
B-T magnitude:7.872
V-T magnitude:7.631

Catàlegs i designacions:
Noms Propis
HD 1989HD 222572
TYCHO-2 2000TYC 2251-2562-1
USNO-A2.0USNO-A2 1125-19905018
HIPHIP 116888

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