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HD 185494


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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.

The 74th Special Name-list of Variable Stars
We present the Name-list introducing GCVS names for 3153 variable starsdiscovered by the Hipparcos mission.

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Osservazione e dati astrometrici

Costellazione:Telescopio
Ascensione retta:19h41m34.12s
Declinazione:-46°46'12.7"
Magnitudine apparente:9.873
Moto proprio RA:45.2
Moto proprio Dec:-99.8
B-T magnitude:10.99
V-T magnitude:9.966

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 185494
TYCHO-2 2000TYC 8390-1988-1
USNO-A2.0USNO-A2 0375-38030978
HIPHIP 96875

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