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HD 365


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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.

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Anka
Sað Açýklýk:00h08m13.63s
Yükselim:-49°43'18.6"
Görünürdeki Parlaklýk:10.169
özdevim Sað Açýklýk:8.3
özdevim Yükselim:1.3
B-T magnitude:10.667
V-T magnitude:10.211

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 365
TYCHO-2 2000TYC 8025-258-1
USNO-A2.0USNO-A2 0375-00040297
HIPHIP 666

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