Astronomy Users Library

Several dozen low-level utilities and codes from the Interactive Data Language (IDL) Astronomy Users Library ( are implemented in R. They treat: time, coordinate and proper motion transformations; terrestrial precession and nutation, atmospheric refraction and aberration, barycentric corrections, and related effects; utilities for astrometry, photometry, and spectroscopy; and utilities for planetary, stellar, Galactic, and extragalactic science.


Reference manual

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0.1 by Eric D. Feigelson, 7 years ago

Browse source code at

Authors: Arnab Chakraborty and Eric D. Feigelson

Documentation:   PDF Manual  

Task views: Chemometrics and Computational Physics

GPL license

See at CRAN