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TYC 5849-242-1


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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.

Stellar population samples at the galactic poles. III - UBVRI observations of proper motion stars near the south pole and the luminosity laws for the halo and old disk populations
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1976ApJS...30..351E&db_key=AST

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观测天体数据

星座:鯨魚座
右阿森松:00h35m52.95s
赤纬:-21°37'09.2"
视星:10.457
右阿森松适当运动:63.6
赤纬适当运动:-44.5
B-T magnitude:11.507
V-T magnitude:10.544

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适当名称
TYCHO-2 2000TYC 5849-242-1
USNO-A2.0USNO-A2 0675-00230652
HIPHIP 2827
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