/************************************************************************** * neptune.cxx * Written by Durk Talsma. Originally started October 1997, for distribution * with the FlightGear project. Version 2 was written in August and * September 1998. This code is based upon algorithms and data kindly * provided by Mr. Paul Schlyter. (pausch@saaf.se). * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * * $Id$ * (Log is kept at end of this file) **************************************************************************/ #ifdef __BORLANDC__ # define exception c_exception #endif #include #include "neptune.hxx" /************************************************************************* * Neptune::Neptune(fgTIME *t) * Public constructor for class Neptune * Argument: The current time. * the hard coded orbital elements for Neptune are passed to * CelestialBody::CelestialBody(); ************************************************************************/ Neptune::Neptune(fgTIME *t) : CelestialBody(131.7806, 3.0173000E-5, 1.7700, -2.550E-7, 272.8461, -6.027000E-6, 30.058260, 3.313E-8, 0.008606, 2.150E-9, 260.2471, 0.00599514700, t) { } /************************************************************************* * void Neptune::updatePosition(fgTIME *t, Star *ourSun) * * calculates the current position of Neptune, by calling the base class, * CelestialBody::updatePosition(); The current magnitude is calculated using * a Neptune specific equation *************************************************************************/ void Neptune::updatePosition(fgTIME *t, Star *ourSun) { CelestialBody::updatePosition(t, ourSun); magnitude = -6.90 + 5*log10 (r*R) + 0.001 *FV; }