[Kstars-devel] More star catalog issues

[Jason Harris]

Yes, Simbad does give magnitudes.  However, wikipedia gets their mags  
from simbad, so there shouldn't be any difference.  Since Andrew  
already has the machinery in place to scrape the wikipedia pages, we  
can just get the magnitudes that way.

Jason

On May 28, 2008, at 3:17 AM, Akarsh Simha wrote:

>
>> It would be really great if we could get our hands on angular size  
>> and
>> position angle data as well...ooh, it looks like simbad reports
>> major/minor axis length and position angle.  For example, here is the
>> simbad result for M 31:
>> http://simbad.u-strasbg.fr/simbad/sim-id?Ident=m+31&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id
>
> Doesn't simbad give us magnitudes? What are the 'fluxes' there? Can we
> convert them into magnitudes?
>
>> the line labeled "Angular size (arcmin)" has three values, these are
>> the major and minor axis length in arcmin, and the position angle in
>> degrees.  We can send batch queries to simbad to retrieve the data  
>> for
>> a large number of objects, but maybe that's a TODO item...let's see
>> what wikipedia can do for us.
>
> That shouldn't be difficult.
>
> Regards
> Akarsh
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