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TYC 7232-735-1


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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.

Catalogue of Metal-Deficient F-Stars to M-Stars - Part One - Stars Classified Spectroscopically - Supplement One
Not Available

Metal-Deficient Giants in the Galactic Field - Catalogue and Some Physical Parameters
Not Available

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Su Yilani
Sað Açýklýk:12h10m00.71s
Yükselim:-31°30'36.1"
Görünürdeki Parlaklýk:10.764
özdevim Sað Açýklýk:-18.9
özdevim Yükselim:-25.5
B-T magnitude:11.886
V-T magnitude:10.857

Kataloglar ve belirtme:
Özgün isimleri
TYCHO-2 2000TYC 7232-735-1
USNO-A2.0USNO-A2 0525-14819768
HIPHIP 59306
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