R Bindings to the 'Astronomy Engine' C Library R package astronomyengine version 0.1.0 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. Software LinkingTo: cpp11 Suggests: testthat (>= 3.0.0) Mitchell O'Hara-Wild <mail@mitchelloharawild.com> Comprehensive R Archive Network (CRAN) Mitchell O'Hara-Wild [aut, cre] (ORCID: <https://orcid.org/0000-0001-6729-7695>), Don Cross [aut, cph] (Author of the bundled Astronomy Engine C library) MIT + file LICENSE (https://CRAN.R-project.org/package=astronomyengine/LICENSE) 2026-02-27 application/tgz https://CRAN.R-project.org/package=astronomyengine doi:10.32614/CRAN.package.astronomyengine