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TYC 6991-98-1


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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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观测天体数据

星座:玉夫座
右阿森松:00h35m54.02s
赤纬:-30°37'03.7"
视星:10.949
右阿森松适当运动:40.8
赤纬适当运动:-18
B-T magnitude:11.772
V-T magnitude:11.017

目录:
适当名称   (Edit)
TYCHO-2 2000TYC 6991-98-1
USNO-A2.0USNO-A2 0525-00229275
HIPHIP 2830

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