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500Re: [vsx-dis] UCAC3 identifier format... It's a joke...

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  • Christopher Watson
    Oct 28, 2009
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      There was a boat-load of things in UCAC3 that should have been worked
      out before a public release -- of those, nomenclature being the most
      trivial by far!

      -Christopher

      On Wed, Oct 28, 2009 at 3:47 PM, Sebastián Otero <varsao@...> wrote:
      > Subject: Re: [vsx-dis] UCAC3 identifier format.
      >
      >
      >> http://cdsweb.u-strasbg.fr/cgi-bin/Dic-Simbad?/10531273
      >>
      >> The Dictionary of Nomeclature is supposed to be the up-to-date
      >> electronic repository of the acronyms and designation formats approved
      >> in the Working Group on Astronomical Designations of IAU Commission 5.
      >> Therefore, the notes
      >>
      >> Write: <<3UCAC FFF-NNNNNN>>
      >>
      >> and
      >>
      >> ***** Avoid the usage of UCAC3, prefer 3UCAC
      >>
      >> would seem to indicate that it is indeed 3UCAC which is the approved
      >> acronym, and that the entire designation follows the field and star
      >> number format described in the note from Bill Gray.
      >>
      >> -Christopher
      >
      >
      >
      > http://cdsweb.u-strasbg.fr/cgi-bin/Dic-Simbad?text=UCAC3&cat=Identifier+starting+by&out=SIMBAD+Usage&max=Maximum+of+50+entries#
      >
      > Now the format is given as UCAC3 FFF-NNNNNN
      >
      > Worse still, VizieR says:
      >
      > UCAC3 designation (1)
      > Note (1)  : the 3UC number is the recommended identification of UCAC3 stars.
      > It made as "zzz-nnnnnnn", where zzz is the zone number (between 1 and 360
      > from South pole to North pole), and nnnnnn a 6-digit running number in the
      > zone. For instance, 3UC180-000007 designates the 7th star in the 180th zone
      > (declination range between -0.5 and 0.0°)
      >
      > So we started as 3UCAC FFF-NNNNNN, now the SIMAD dictionary changed it to
      > UCAC3 FFF-NNNNNN and VizieR says 3UCFFF-NNNNNN...
      >
      > Weren't these things supposed to be worked out before a public release???
      >
      > Cheers,
      > Sebastian.
      >
      >
      >
      > ------------------------------------
      >
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      >
      >
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