/ftp/cats/III/117



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III/117           MK Classifications of Close Visual Binaries   (Corbally, 1984)
The following files can be converted to FITS (extension .fit .fgz or .fiZ)
	tables.dat notes.dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=III/117
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Beginning of ReadMe : III/117 MK Classifications of Close Visual Binaries (Corbally, 1984) ================================================================================ Close Visual Binaries. I. MK Classifications Corbally C.J. <Astrophys. J. Suppl. Ser. 55, 657( 1984)> =1984ApJS...55..657C ================================================================================ ADC_Keywords: Stars, double and multiple ; MK spectral classification Description: Each component of 170 close visual binaries has been classified with new procedures for controlling contamination problems. These classifications are shown to be on the MK system. Two sources of area scanner UBV photometry were compared in order to establish homogeneous photometric as well as spectroscopic data. From a consideration of systematic errors in the V magnitude difference between components the photometry of Hurly and Warner is to be preferred. Absolute magnitudes for each binary are derived from magnitude difference via a tested MK-Mv map.