lunar_phase {calcal}R Documentation

Lunar phase at date

Description

Lunar phase at date, as an angle in degrees. An angle of 0 means a new moon, 90 degrees means the first quarter, 180 means a full moon, and 270 degrees means the last quarter.

Usage

lunar_phase(date)

Arguments

date

Date vector

Value

A numeric vector of angles in degrees representing the lunar phase at the given dates.

Examples

april2025 <- gregorian_date(2025, 4, 1:30)
lunar_phase(april2025)


[Package calcal version 1.0.0 Index]