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]