skylight: A Simple Sky Illuminance Model

A tool to calculate sky illuminance values (in lux) for both sun and moon. The model is a verbatim translation of the code by Janiczek and DeYoung (1987) <>.

Version: 1.2
Depends: R (≥ 3.6)
Suggests: tidyr, rnaturalearth, dplyr, ggplot2, terra, ncdf4, scales, rmarkdown, covr, testthat, knitr
Published: 2023-11-04
DOI: 10.32614/CRAN.package.skylight
Author: Koen Hufkens ORCID iD [aut, cre], BlueGreen Labs [cph, fnd]
Maintainer: Koen Hufkens <koen.hufkens at>
License: AGPL-3
NeedsCompilation: no
Citation: skylight citation info
CRAN checks: skylight results


Reference manual: skylight.pdf
Vignettes: skylight advanced
skylight use


Package source: skylight_1.2.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
macOS binaries: r-release (arm64): skylight_1.2.tgz, r-oldrel (arm64): skylight_1.2.tgz, r-release (x86_64): skylight_1.2.tgz, r-oldrel (x86_64): skylight_1.2.tgz
Old sources: skylight archive


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