ASTRO - Code to find constellation

Hi Everyone,
I wonder if anyone has ever developed some code (free, GNU, smileware :-))
to resolve the constellation from AR/Dec. I'd like to complete a catalog
with this datum.

Thank you in advance!

Andy - ITA
--
http://www.no4er.it
"At the present time, the whole subject is well supplied with fascinating
uncertainties."
Burnham's celestial handbook Vol.1, - Z Andromedae