[vsnet-chat 2963] Re: (fwd) Re: (fwd) Re: Tycho,Tycho-2,Hipparcos magnitudes

[Brian Skiff <bas@lowell.edu>]

     The plots that John Greaves produced by comparing Tycho-2 against my large
photometry file are at:

http://ftp.lowell.edu/pub/bas/VJT2mVJL.gif   (V difference as a function of V)
http://ftp.lowell.edu/pub/bas/BVTL_VJL.gif   (B-V scatter as a function of V)
http://ftp.lowell.edu/pub/bas/BVT2mBVL.gif   (systematics of Tycho-2 B-V as
                                             function of color)

John's discussion is at:  http://ftp.lowell.edu/pub/bas/tycho2.readme

The large photometric reference file (30,000 stars mostly with V > 10) is at:

http://ftp.lowell.edu/pub/bas/starcats/loneos.phot.gz   (600Kb)

(omit the '.gz' for a flat ASCII copy, 2Mb).

\Brian

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