[vsnet-chat 1379] Re: comparison of GSPC and USNO-based V mags

[Taichi Kato <tkato>]

Re: [vsnet-chat 1376] comparison of GSPC and USNO-based V mags

Arne Henden wrote:

> I think it would be even more interesting if he compared against USNO-A2.0

    Yes, I would be happy to do, when USNO A2.0 CD-ROMs become available.
My present identification system is on our local hard drive (I managed to
construct a quick look-up table and rearranged main table for any given
position, which enabled these identifications; the program is written in
Java).  If the catalog format of A2.0 is the same as A1.0, I will be able
to replace with the new one without much trouble (but with much CPU time..).

> Dave never promised identical star numbers on subsequent releases, and that
> is definitely true between USNOA-1.0 and USNOA-2.0.  There are many millions
> of 'new' stars.

    It's a happy news to hear of a large number of 'new' stars.  I wonder
how the CBAT will treat the formarly USNO-designated and announced variable
stars, such as USNO 1425.09823278.  I hope the GCVS team could give some
permanent name before confusion occurs.

Regards,
Taichi Kato

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