499Re: [vsx-dis] UCAC3 identifier format... It's a joke...
- Oct 28, 2009Subject: Re: [vsx-dis] UCAC3 identifier format.
> 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>>
> ***** 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.
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???
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