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TYC 8017-497-1


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Bright Metal-poor Stars from the Hamburg/ESO Survey. I. Selection and Follow-up Observations from 329 Fields
We present a sample of 1777 bright (91.0) metal-poor([Fe/H]<-2.0) giants of 9%+/-2%, which is lower than previouslyreported. However, the frequency rises to similar (>20%) and highervalues with increasing distance from the Galactic plane. Although thenumbers of stars at low metallicity are falling rapidly at the lowestmetallicities, there is evidence that the fraction of carbon-enhancedmetal-poor stars is increasing rapidly as a function of decliningmetallicity. For ~60 objects, high-resolution data have already beenobtained; one of these, HE 1327-2326, is the new record holder for themost iron-deficient star known.

UVBY observations of A, F, G and K field stars
Photoelectric data in the uvby system have been obtained for about 800southern stars of the Hipparcos Input Catalog (Grenon, 1982, 1985). Mostof the stars are F and G main sequence and fall in the magnitude range V= 8-11.

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Observation and Astrometry data

Constellation:ほうおう座
Right ascension:23h36m16.27s
Declination:-40°30'57.1"
Apparent magnitude:10.158
Proper motion RA:96.7
Proper motion Dec:-9.1
B-T magnitude:10.828
V-T magnitude:10.214

Catalogs and designations:
Proper Names   (Edit)
TYCHO-2 2000TYC 8017-497-1
USNO-A2.0USNO-A2 0450-40681165
HIPHIP 116487

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