astronomyengine: R Bindings to the 'Astronomy Engine' C Library

Provides access to the 'Astronomy Engine' C library (<https://github.com/cosinekitty/astronomy>) by Don Cross. The library calculates positions of the Sun, Moon, and planets, and predicts astronomical events such as rise/set times, lunar phases, equinoxes, solstices, eclipses, and transits. It is based on the 'VSOP87' planetary model and is accurate to within approximately one arcminute. This package bundles the single-file C source so that other R packages can link against it via 'LinkingTo' without shipping their own copy.

Version:	0.1.0
LinkingTo:	cpp11
Suggests:	testthat (≥ 3.0.0)
Published:	2026-02-27
DOI:	10.32614/CRAN.package.astronomyengine (may not be active yet)
Author:	Mitchell O'Hara-Wild [aut, cre], Don Cross [aut, cph] (Author of the bundled Astronomy Engine C library)
Maintainer:	Mitchell O'Hara-Wild <mail at mitchelloharawild.com>
BugReports:	https://github.com/mitchelloharawild/astronomyengine/issues
License:	MIT + file LICENSE
URL:	https://github.com/mitchelloharawild/astronomyengine
NeedsCompilation:	yes
Materials:	README, NEWS
CRAN checks:	astronomyengine results

Documentation:

Reference manual:

astronomyengine.html , astronomyengine.pdf

Downloads:

Package source:	astronomyengine_0.1.0.tar.gz
Windows binaries:	r-devel: astronomyengine_0.1.0.zip, r-release: not available, r-oldrel: not available
macOS binaries:	r-release (arm64): astronomyengine_0.1.0.tgz, r-oldrel (arm64): astronomyengine_0.1.0.tgz, r-release (x86_64): not available, r-oldrel (x86_64): not available

Linking:

Please use the canonical form https://CRAN.R-project.org/package=astronomyengine to link to this page.