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[vsnet-chat 5866] Re: GSC vs Tyc2



     I would recommend using Tycho-2 stars brighter than mag. 9.5 or so
up to the brightest that are not saturated.  Adjust VT to standard V
using either Arne's transformations or the one derived by Bessell
(http://ftp.lowell.edu/pub/bas/starcats/bessell.tyc).

\Brian

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