Method: When::Ephemeris::Datum#apparent_radius

Defined in:

lib/when_exe/ephemeris.rb

#apparent_radius(t, base = Earth) ⇒ Numeric

視半径 / CIRCLE

Parameters:

• t (Numeric) —

  ユリウス日(Terrestrial Time)

• t (When::TM::TemporalPosition)
• base (When::Coordinates::Spatial, When::Ephemeris::Datum) (defaults to: Earth) —

  観測地

Returns:

• (Numeric)

# File 'lib/when_exe/ephemeris.rb', line 1078

def apparent_radius(t, base=Earth)
  target_coords = self.coords(t, base)
  asin(@surface_radius / (target_coords.radius * AU)) / CIRCLE
end