function days = month_length_synodic ( )

%*****************************************************************************80
%
%% MONTH_LENGTH_SYNODIC returns the mean synodic month length.
%
%  Discussion:
%
%    The synodic month is the time from one new moon to the next, that is,
%    when the moon and Sun are in conjunction.
%
%  Licensing:
%
%    This code is distributed under the GNU LGPL license.
%
%  Modified:
%
%    22 July 2012
%
%  Author:
%
%    John Burkardt
%
%  Parameters:
%
%    Output, real DAYS, the length of the
%    mean synodic month, in days.
%
  month_length_synodic = 29.530588853;

  return
end
