Giancarlo wrote:

Hello,

how can I tell the constellation where a star is, from its SAO number?
I mean: are there catalogs or lists or whatever that tell this?
I have a full SAO file but I can't see this information.

Actually, star constellation information is now available from my free
program RTGUI+S. I recently put it in.

You have to download the program itself, which is only about 540k, then
also the auxiliary catalog PPM, which contains SAO and HD numbers. The
PPM catalog for RTGUI is kind of large, containing 469,000 entries; it's
a 9.4 meg download, and expands to 47 meg when you use it.

Start up RTGUI, and switch the catalog to PPM.RTG. Then if we do a
"simple search" for SAO 12345 (a number I just made up), we get the
following:

PPM 13752, D +67 215, SAO 12345 ,HD 15784 ,Cas


www.rtgui.com



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