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J/AJ/110/1083            Photometry of Zwicky Galaxies     (Takamiya+ 1995)
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Photoelectric photometry of Zwicky Galaxies
     Takamiya M., Kron R.G., Kron G.E.
    <Astron. J. 110, 1083 (1995)>
    =1995AJ....110.1083T
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ADC_Keywords: Galaxies, photometry

Abstract:
    Multiaperture photoelectric measurements in the B and V bands are
    presented for 601 galaxies in Volumes I, II, and V of Zwicky's
    catalogue. Large aperture observations were made in the 1960's with
    the Lick 3 m telescope and the USNO 1 m telescope. Systematics in
    Zwicky's magnitude system are investigated as a function of magnitude
    and direction in the sky. The photoelectric sample is argued to be
    representative of galaxies in Zwicky's catalogue at B ~ 15. A strong
    systematic error in Zwicky's magnitudes is apparent in Volume I
    fainter than m_z = 15.0. The B-V color distribution is discussed.

File Summary:
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 FileName    Lrecl    Records   Explanations
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ReadMe          80          .   This file
table1.dat      76        942   The photoelectric data
table1.tex     171        958   AASTeX version of table1.dat
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Byte-by-byte Description of file: table1.dat
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   Bytes Format  Units      Label    Explanations
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   1- 2   I2     h          RAh      Right ascension 1950 from CGCG <VII/4>
   3- 7   F5.1   min        RAm      Right ascension 1950 from CGCG
   9      A1     ---        DE-      Declination sign from CGCG
  10-11   I2     deg        DEd      Declination 1950 from CGCG
  12-14   I3     arcmin     DEm      Declination 1950 from CGCG
  15-20   F6.1   mag        mz       Magnitude listed in CGCG <VII/4>
  23-30   A8     ---        Name     NGC, IC or UGC number
  31-37   F7.2   mag        Vmag     V magnitude measured within aperture radius
  38-39   A2     ---      n_Vmag     [a-e ] Note flags for Vmag (1)
  40-45   F6.2   mag        Bmag     B magnitude measured within aperture radius
  46-47   A2     ---      n_Bmag     [a-e ] Note flags for Bmag (1)
  48-52   F5.2   mag        B-V      B-V color
  53-60   F8.3   mag        Delta_m  Aperture correction
  61-67   F7.1   arcsec     Rad      Aperture radius
  69-76   A8   "DD/MM/YY"   Date     Date of observation
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Note (1): Note flags for V and B magnitudes:
     a  Data marked with "x" in original data sheets
     b  Data marked with "?" in original data sheets
     c  Missing computer log entry
     d  Perhaps 1/2 mag shunt error
     e  |mag - mag_{rc3}| > 0.75
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Remarks and Modifications:
    The Date originally in MM/DD/YY has been converted to FITS standard,
    and the fields originally blank (RA, DE, Name, Date) for continuation
    have been filled.

Origin: AAS CD-ROM series, Volume 5, 1995         Lee Brotzman [ADS] 27-Sep-1995
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(End)                                                         [CDS]  23-Aug-1996