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HD 7856


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관련 글

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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관측 및 측정 데이터

별자리:불사조자리
적경:01h17m20.72s
적위:-51°19'31.9"
가시등급:9.822
적경상의 고유운동:124.9
적위상의 고유운동:-4.7
B-T magnitude:10.77
V-T magnitude:9.901

천체목록:
일반명   (Edit)
HD 1989HD 7856
TYCHO-2 2000TYC 8039-120-1
USNO-A2.0USNO-A2 0375-00394712
HIPHIP 6020

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