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]