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HD 12320


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Search for associations containing young stars (SACY). I. Sample and searching method
We report results from a high-resolution optical spectroscopic surveyaimed to search for nearby young associations and young stars amongoptical counterparts of ROSAT All-Sky Survey X-ray sources in theSouthern Hemisphere. We selected 1953 late-type (B-V~≥~0.6),potentially young, optical counterparts out of a total of 9574 1RXSsources for follow-up observations. At least one high-resolutionspectrum was obtained for each of 1511 targets. This paper is the firstin a series presenting the results of the SACY survey. Here we describeour sample and our observations. We describe a convergence method in the(UVW) velocity space to find associations. As an example, we discuss thevalidity of this method in the framework of the β Pic Association.

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观测天体数据

星座:天爐座
右阿森松:01h59m52.93s
赤纬:-38°07'33.8"
视星:9.377
右阿森松适当运动:-17.2
赤纬适当运动:-45.3
B-T magnitude:10.925
V-T magnitude:9.505

目录:
适当名称
HD 1989HD 12320
TYCHO-2 2000TYC 7543-226-1
USNO-A2.0USNO-A2 0450-00685926
HIPHIP 9336

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