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TYC 2543-597-1


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Inaccuracies in the spectral classification of stars from the Tycho-2 Spectral Type Catalogue
We compare the spectroscopic and trigonometric parallaxes of commonstars from the Tycho-2 Spectral Type and Hipparcos Catalogues. Thiscomparison has revealed that the distance estimations for theoverwhelming majority of stars by both methods yield very similarresults. However, there is a small fraction of stars for which thedistance estimates differ significantly. It is these stars that are thesubject of our study. We have been able to find the causes of thesedifferences.

The N2K Consortium. VII. Atmospheric Parameters of 1907 Metal-rich Stars: Finding Planet-Search Targets
We report high-precision atmospheric parameters for 1907 stars in theN2K low-resolution spectroscopic survey, designed to identify metal-richFGK dwarfs likely to harbor detectable planets. Of these stars, 284 arein the ideal temperature range for planet searches,Teff<=6000 K, and have a 10% or greater probability ofhosting planets based on their metallicities. The stars in thelow-resolution spectroscopic survey should eventually yield >60 newplanets, including 8-9 hot Jupiters. Short-period planets have alreadybeen discovered orbiting the survey targets HIP 14810 and HD 149143.

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Dades d'Observació i Astrometria

Constel·lació:Canes Venatici
Ascensió Recta:13h45m53.05s
Declinació:+36°27'50.5"
Magnitud Aparent:10.112
Moviment propi RA:-100.2
Moviment propi Dec:64.2
B-T magnitude:11.181
V-T magnitude:10.201

Catàlegs i designacions:
Noms Propis   (Edit)
TYCHO-2 2000TYC 2543-597-1
USNO-A2.0USNO-A2 1200-07153694
HIPHIP 67171

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