Radiation, astronomy and atmosphere | Getting started | Introduction | Position of the sun | Times of sunrise, solar noon and sunset | Solar time | Time of day | Relative air mass | Irradiance
Package: SunCalcMeeus 0.1.3.9000
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).
Authors:
SunCalcMeeus_0.1.3.9000.tar.gz
SunCalcMeeus_0.1.3.9000.zip(r-4.7)SunCalcMeeus_0.1.3.9000.zip(r-4.6)SunCalcMeeus_0.1.3.9000.zip(r-4.5)
SunCalcMeeus_0.1.3.9000.tgz(r-4.6-any)SunCalcMeeus_0.1.3.9000.tgz(r-4.5-any)
SunCalcMeeus_0.1.3.9000.tar.gz(r-4.7-any)SunCalcMeeus_0.1.3.9000.tar.gz(r-4.6-any)
SunCalcMeeus_0.1.3.9000.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION |NEWS
card.svg |card.png
SunCalcMeeus/json (API)
| # Install 'SunCalcMeeus' in R: |
| install.packages('SunCalcMeeus', repos = c('https://aphalo.r-universe.dev', 'https://cloud.r-project.org')) |
Bug tracker:https://github.com/aphalo/suncalcmeeus/issues
Pkgdown/docs site:https://docs.r4photobiology.info
Last updated from:24232f89f9. Checks:9 OK. Indexed: yes.
| Target | Result | Time | Files | Syslog |
|---|---|---|---|---|
| linux-devel-x86_64 | OK | 128 | ||
| source / vignettes | OK | 216 | ||
| linux-release-x86_64 | OK | 124 | ||
| macos-release-arm64 | OK | 88 | ||
| macos-oldrel-arm64 | OK | 74 | ||
| windows-devel | OK | 91 | ||
| windows-release | OK | 80 | ||
| windows-oldrel | OK | 83 | ||
| wasm-release | OK | 112 |
Exports:as_todas.solar_datebind_geocodesday_lengthday_nightdistance_to_sunirrad_extraterrestrialis_daytimeis_valid_geocodeis.solar_dateis.solar_timelength_geocodena_geocodenight_lengthnoon_timerelative_AMrelative_AM_geotimerelative_AMtrelative_AMt_geotimesolar_timesplit_geocodessun_anglessun_azimuthsun_elevationsun_zenith_anglesunrise_timesunset_timetz_time_diffvalidate_geocode
Dependencies:clicpp11dplyrgenericsgluelifecyclelubridatemagrittrpillarpkgconfigR6rlangtibbletidyselecttimechangeutf8vctrswithr
User Guide
Last update: 2026-04-15
Started: 2024-08-05
User Guide: 0 The R for Photobiology Suite
Introduction | References | Packages in the suite | Acknowledgements
Last update: 2025-06-06
Started: 2024-08-05
Readme and manuals
Help Manual
| Help page | Topics |
|---|---|
| SunCalcMeeus: Sun Position and Daylight Calculations | SunCalcMeeus-package SunCalcMeeus |
| Convert datetime to time-of-day | as_tod |
| Convert a solar_time object into solar_date object | as.solar_date |
| Times for sun positions | day_length day_night day_night_fast is_daytime night_length noon_time sunrise_time sunset_time |
| Encode in a Common Format | format.solar_time |
| Encode in a Common Format | format.tod_time |
| Extraterrestrial solar irradiance | irrad_extraterrestrial |
| Query class | is.solar_date is.solar_time |
| Print solar time and solar date objects | print.solar_date print.solar_time |
| Print time-of-day objects | print.tod_time |
| Relative Air Mass (AM) | relative_AM relative_AMt relative_AMt_geotime relative_AM_geotime |
| Local solar time | solar_time |
| Split or bind geocodes | bind_geocodes split_geocodes |
| Sun angles | distance_to_sun sun_angles sun_angles_fast sun_azimuth sun_elevation sun_zenith_angle |
| Time difference between two time zones | tz_time_diff |
| Validate a geocode | is_valid_geocode length_geocode na_geocode validate_geocode |
