/************************************************************************** * jupiter.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 "jupiter.hxx" /************************************************************************* * Jupiter::Jupiter(fgTIME *t) * Public constructor for class Jupiter * Argument: The current time. * the hard coded orbital elements for Jupiter are passed to * CelestialBody::CelestialBody(); ************************************************************************/ Jupiter::Jupiter(fgTIME *t) : CelestialBody(100.4542, 2.7685400E-5, 1.3030, -1.557E-7, 273.8777, 1.6450500E-5, 5.2025600, 0.000000, 0.048498, 4.469E-9, 19.89500, 0.08308530010, t) { } /************************************************************************* * void Jupiter::updatePosition(fgTIME *t, Star *ourSun) * * calculates the current position of Jupiter, by calling the base class, * CelestialBody::updatePosition(); The current magnitude is calculated using * a Jupiter specific equation *************************************************************************/ void Jupiter::updatePosition(fgTIME *t, Star *ourSun) { CelestialBody::updatePosition(t, ourSun); magnitude = -9.25 + 5*log10( r*R ) + 0.014 * FV; }