Package index • SunCalcMeeus

Package overview

SunCalcMeeus SunCalcMeeus-package: SunCalcMeeus: Sun Position and Daylight Calculations

Astronomy

Sun-related astronomical computations based on Meeus’ algorithms.

sun_angles() sun_angles_fast() sun_elevation() sun_zenith_angle() sun_azimuth() distance_to_sun(): Sun angles

day_night() day_night_fast() is_daytime() noon_time() sunrise_time() sunset_time() day_length() night_length(): Times for sun positions

Local solar time

Classes and their methods for astronomical local time.

solar_time(): Local solar time

as.solar_date(): Convert a solar_time object into solar_date object

is.solar_time() is.solar_date(): Query class

format(<solar_time>): Encode in a Common Format

print(<solar_time>) print(<solar_date>): Print solar time and solar date objects

Time of day

Class and its methods for local time of day, i.e., times lacking the date component.

as_tod(): Convert datetime to time-of-day

format(<tod_time>): Encode in a Common Format

print(<tod_time>): Print time-of-day objects

Quantities dependent on sun position

Computation of equivalent air mass and extraterrestrial solar irradiance.

relative_AM() relative_AMt() relative_AM_geotime() relative_AMt_geotime(): Relative Air Mass (AM)

irrad_extraterrestrial(): Extraterrestrial solar irradiance

Utilities

Various utilities for handling input and output for the functions and methods above.

tz_time_diff(): Time difference between two time zones

validate_geocode() is_valid_geocode() length_geocode() na_geocode(): Validate a geocode

split_geocodes() bind_geocodes(): Split or bind geocodes