Astronomical Data Center

ADCADC/CDS Standard Document for Catalog:
/catalogs/3/3117/

The following is the "ReadMe" document that describes this ADC catalog.

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You can access the files described here from the anonymous FTP directory:
   ftp://adc.astro.umd.edu/pub/adc/archives/catalogs/3/3117/. 

III/117     Close Visual Binaries. I. MK Classifications (Corbally 1984)
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Close Visual Binaries. I. MK Classifications
    Corbally C.J.
    <ApJS, 55, 657 (1984)>
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ADC_Keywords: Stars, double and multiple ; MK spectral classification

Description:
   Each compunent of 170 close visual binaries has been classified with
   new 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.

File Summary:
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 FileName       Lrecl  Records   Explanations
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ReadMe             80        .   This file
doc_01             80      102   Introduction
data_01.dat       103      459   Tables 1A and 1B
data_02.dat        72      691   Notes to Tables
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Byte-by-byte Description of file: data_02.dat
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(End)                                 Gail L. Schneider [SSDOO/ADC]  25-Sep-1995
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