[vsnet-chat 5613] Re: USNO-B1.0 paper preprint

["Ondrej Pejcha" <opejcha@volny.cz>]

>      Folks interested in mammoth star catalogues may want
to read this:
>
> http://xxx.lanl.gov/abs/astro-ph/0210694
> The USNO-B Catalog

Dear colleagues,

I would like to ask if there is any major difference between
the currently released USNO B1.0 and GSC II? What is the
need for producing two catalogues from similar plate
collections?

Best regards,

Ondrej Pejcha

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