Method: When::Ephemeris::Datum#mean_longitude

Defined in:

lib/when_exe/ephemeris.rb

#mean_longitude(t) ⇒ Numeric

光行差を含んだ平均黄経 / CIRCLE

Parameters:

• t (Numeric) —

  ユリウス日(Terrestrial Time)

• t (When::TM::TemporalPosition)

Returns:

• (Numeric)

# File 'lib/when_exe/ephemeris.rb', line 1017

def mean_longitude(t)
  coord = _coords(t)
  coord.c - @aberration / coord.radius / 360
end