SunCalcMeeus: Sun Position and Daylight Calculations
Compute the position of the sun, and local solar time using Meeus' formulae. Compute day and/or night length using different twilight definitions or arbitrary sun elevation angles. This package is part of the 'r4photobiology' suite, Aphalo, P. J. (2015) <doi:10.19232/uv4pb.2015.1.14>. Algorithms from Meeus (1998, ISBN:0943396611).
| Version: | 0.1.3 |
| Depends: | R (≥ 4.1.0) |
| Imports: | stats,tibble (≥ 3.3.0),lubridate (≥ 1.9.4),dplyr (≥1.1.4) |
| Suggests: | knitr (≥ 1.50),rmarkdown (≥ 2.29),testthat (≥ 3.2.3),roxygen2 (≥ 7.3.0),lutz (≥ 0.3.2),covr,spelling |
| Published: | 2025-09-22 |
| DOI: | 10.32614/CRAN.package.SunCalcMeeus |
| Author: | Pedro J. Aphalo [aut, cre] |
| Maintainer: | Pedro J. Aphalo <pedro.aphalo at helsinki.fi> |
| BugReports: | https://github.com/aphalo/SunCalcMeeus/issues |
| License: | GPL-2 |GPL-3 [expanded from: GPL (≥ 2)] |
| URL: | https://docs.r4photobiology.info/SunCalcMeeus/,https://github.com/aphalo/SunCalcMeeus |
| NeedsCompilation: | no |
| Language: | en-US |
| Citation: | SunCalcMeeus citation info |
| Materials: | README,NEWS |
| CRAN checks: | SunCalcMeeus results |
Documentation:
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