On Tue, 29 Aug 2006 17:39:23 +0200, Thierry wrote:

To create renderings of stars I need to know their spectral color to
represent them the best I can using a calibrated screen.

Try this:
http://hubblesource.stsci.edu/source.../color_swatch/

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Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com