[vsnet-chat 5855] Re: GSC vs Tyc2

[Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>]

Re: [vsnet-chat 5847] GSC vs Tyc2

> Its response wasn't exactly the standard
> shape for the B, V passbands, but the people who created Tycho-2
> worked hard to transform the measurements to the standard
> system.

   One comment.  This sentence might sound that one can transform (any)
non-standard passbands to standard bands with *hard work*, but this it
not always true.  However hard one might try, there may be cases in which
acceptable conversions are impossible.  When one tries to use non-standard
passbands, one should have to design the bands carefully to enable such
a conversion.

Regards,
Taichi Kato

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