[vsnet-chat 1373] Re: comparison of GSPC and USNO-based V mags

[bas@lowell.Lowell.Edu (Brian Skiff)]

     Thanks for the follow-up on the A1.0 photometry.  Despite Dave Monet's
comments to the contrary, it has seemed to me that the bright stars (in the
mag. 10 -13 range) were in fact no worse than fainter ones, and your
analysis seems to bear this out.  But clearly the non-linearities you have
found for southern stars means the situation is complex.
     My compilation of faint sequences may be dense enough to allow one to
make minor adjustments in each field, using the relevant GSPC sequence plus
any others that may happen to fall on the same sky survey plate.

\Brian

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