Moon Phase Angle

Returns the Moon's phase as an angle from 0 to 360 degrees, where 0 is new moon, 90 is first quarter, 180 is full moon, and 270 is third quarter.

Usage

astro_moon_phase(time)

Arguments

time

A POSIXct datetime representing the observation time.

Value

A numeric value representing the Moon's phase angle in degrees (0-360).

Examples

astro_moon_phase(as.POSIXct("2025-02-19 12:00:00", tz = "UTC"))
#> [1] 256.4968