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[vsnet-chat 6270] color conversion



Dear colleagues,

Does anyone know a web page which shows a color conversion diagram or
formula between 2MASS JHKs color and UBVRI color, or GSC2 JFN color
and UBVRI color?

For example, a diagram between 2MASS J-Ks and Johnson B-V, or between
GSC2 J-F and Johnson B-V.

On 2MASS color, I know the page:

  http://ftp.lowell.edu/pub/bas/starcats/uvby.calib

is helpful. But I would like to see a diagram or conversion formula,
too, if exists.

On GSC2 color, I found "gsc2_johnson_kron_cousins.txt" in GOOGLE
cache, but the original file is now not found...

Thanks in advance,

--
Seiichi Yoshida
comet@aerith.net
http://vsnet.aerith.net/


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