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HD 78020


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관련 글

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.

New Elements for 80 Eclipsing Binaries III.
This research presents new elements for 80 eclipsing binaries found withthe help of the ASAS-3 and Hipparcos databases.

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관측 및 측정 데이터

별자리:돛자리
적경:09h04m38.42s
적위:-41°03'52.6"
가시등급:8.913
거리:173.01 파섹
적경상의 고유운동:15.7
적위상의 고유운동:39.3
B-T magnitude:9.63
V-T magnitude:8.973

천체목록:
일반명   (Edit)
HD 1989HD 78020
TYCHO-2 2000TYC 7681-1919-1
USNO-A2.0USNO-A2 0450-08152838
HIPHIP 44550

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