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TYC 1442-1624-1


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Kinematics and properties of F stars near the North Galactic Pole. II - The isothermal disc
Radial velocities are given for about 550 photometrically-identifieddisk-population F stars lying within 15 deg of the North Galactic Pole.The overall radial and z-velocity distributions are found to be closelyGaussian, with corrected rms and mean z velocities of 11.3 + or - 0.6and -9.5 + or - 0.5 km/s, respectively. The isothermal kinematics of thepopulation are reflected in the constant velocity dispersion to a zdistance of 400 pc. No systematic variation of either the velocitydispersion or the stellar age with the metallicity-sensitive Stromgrendelta m1 index is noted over a range of ages up to 5 Gyr.

Photoelectric photometry of stars near the north Galactic pole. II
UBV photometric observations of about 700 stars near the north Galacticpole, obtained using single-channel photometers on the 40-cm and 60-cmCassegrain telescopes at Kvistaberg Observatory (during 1976-1983) andthe Spanish International Observatory (during 1984), respectively, aspart of a program including the stars to be observed by the Hipparcosspacecraft, are reported. The data are presented in a series of tablesand briefly characterized.

Further Studies of A-Stars and F-Stars in the Region of the North Galactic Pole - Part Four - a Catalogue of Uvbyr Photometry and Derived Quantities
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Further Studies of A-Stars and F-Stars in the Region of the North Galactic Pole - Part Three - a Catalogue of Star Names and Positions
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Miembro de los siguientes grupos:

Datos observacionales y astrométricos

Constelación:Cabellera de Berenices
Ascensión Recta:12h12m50.06s
Declinación:+17°21'18.7"
Magnitud Aparente:9.812
Movimiento Propio en Ascensión Recta:0.7
Movimiento Propio en Declinación:4.2
B-T magnitude:10.269
V-T magnitude:9.85

Catálogos y designaciones:
Nombres Propios
TYCHO-2 2000TYC 1442-1624-1
USNO-A2.0USNO-A2 1050-06670209
HIPHIP 59554
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