moon_phase_angle

astroplan.moon_phase_angle(time, ephemeris=None)[source]

Calculate lunar orbital phase in radians.

Parameters:

time : Time

Time of observation

ephemeris : str, optional

Ephemeris to use. If not given, use the one set with solar_system_ephemeris (which is set to ‘builtin’ by default).

Returns:

i : float

Phase angle of the moon [radians]