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HD 7866


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Large and kinematically unbiased samples of G and K type stars. I - The dwarfs
Four-color, H-beta, and (R,I) photometry for the little-evolvedmain-sequence stars from the Bright Star Catalogue, South Galactic Pole,Griffin (1971), and Moore-Paddock-Wayman (Moore and Paddock 1950, andWayman 1960) samples are analyzed. The luminosity and heavy-elementabundances for these stars are calculated in terms of the Hyadessupercluster, the Wolf 630 group, the Sirius supercluster, and theKapteyn star group. The data reveal the presence of a metal-abundancedependent discontinuity near M(v) = +7 mag in the photometric parametersof dwarfs. The distributions of the abundances and the space motions ofthe sample stars are discussed.

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Observation and Astrometry data

Constellation:Sculptor
Right ascension:01h17m51.81s
Declination:-32°00'29.6"
Apparent magnitude:9.568
Proper motion RA:-70.7
Proper motion Dec:-88.1
B-T magnitude:10.294
V-T magnitude:9.628

Catalogs and designations:
Proper Names
HD 1989HD 7866
TYCHO-2 2000TYC 7002-2264-1
USNO-A2.0USNO-A2 0525-00445714
HIPHIP 6067

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