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HD 98052


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관련 글

The chemical evolution of the solar neighborhood. I - A bias-free reduction technique and data sample
The possible ways of measuring the age-metallicity relation for thegalactic disk in the neighborhood of the sun are discussed. It is shownthat the use of a field star sample chosen on the basis of effectivetemperature introduces a bias which results in a monotonic increase inthe metal abundance of the disk with time. However, if theage-metallicity relation for the disk can be shown to satisfy certaincriteria, the bias introduced in such a sample can be neglected: thegalactic disk apparently satisfies the criteria. It is concluded that asample analyzed through the use of uvby and H(beta) photometry inconjunction with a self-consistent set of theoretical isochronesprovides the least biased, most accurate estimate of the age-metallicityrelation for the disk.

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관측 및 측정 데이터

별자리:켄타우루스자리
적경:11h15m59.45s
적위:-55°12'30.8"
가시등급:7.542
거리:244.499 파섹
적경상의 고유운동:-12.8
적위상의 고유운동:8
B-T magnitude:7.822
V-T magnitude:7.566

천체목록:
일반명   (Edit)
HD 1989HD 98052
TYCHO-2 2000TYC 8620-135-1
USNO-A2.0USNO-A2 0300-12037252
HIPHIP 55036

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