Alberto Micol wrote:
>
> Help: I thought the ucd for the target name was under the obs. tree,
> but I cannot find it. What is it?
> In the old days was: ID_TARGET, but now? Was it removed?
Hello,
The UCD for the target name is simply meta.id (meta.id;src if you want to be very precise). (see the tools: http://vizier.u-strasbg.fr/UCD/tools.htx )
> > Other heuristics that could be used....
> > If a number is signed and it is not the first field, it must be
> > the start
> > of the second coordinate.
>
> One way would be to enforce the sign for the second coordinate as a
> recognised separator, but please...
Indeed, the sign can be a very useful separator between the
two coordinate components. I think we should encourage the use of
+/- in any recommended format.
Interestingly enough, for earth geography, the ISO 6709 standard
requires the sign for both longitude and latitude:
http://www.anoca.org/ddd/altitude/iso_6709.html
But there is NO other separator... quite different from common use
in astronomy, so I'm not pretending this is the way to go for IVOA.
Sebastien.
--
_______
/ ~ /, Sebastien Derriere mailto:derriere-at-astro.u-strasbg.fr
/ ~~~~ // Observatoire de Strasbourg Phone +33 (0) 390 242 444
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Received on 2006-09-18Z15:35:25