... IRAF

IRAF is distributed by the National Optical Astronomy Observatory, which is operated by the Association of Universities for Research in Astronomy (AURA) under cooperative agreement with the National Science Foundation.

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... Cookbook

http://irsa.ipac.caltech.edu/data/SPITZER/docs/dataanalysistools/

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... SIMBAD

http://simbad.u-strasbg.fr/

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... VizieR

http://vizier.u-strasbg.fr/

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