1 /**************************************************************************
3 * Written by Durk Talsma. Originally started October 1997, for distribution
4 * with the FlightGear project. Version 2 was written in August and
5 * September 1998. This code is based upon algorithms and data kindly
6 * provided by Mr. Paul Schlyter. (pausch@saaf.se).
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
24 **************************************************************************/
27 # define exception c_exception
31 #include "mercury.hxx"
33 /*************************************************************************
34 * Mercury::Mercury(double mjd)
35 * Public constructor for class Mercury
36 * Argument: The current time.
37 * the hard coded orbital elements for Mercury are passed to
38 * CelestialBody::CelestialBody();
39 ************************************************************************/
40 Mercury::Mercury(double mjd) :
41 CelestialBody (48.33130, 3.2458700E-5,
43 29.12410, 1.0144400E-5,
46 168.6562, 4.09233443680, mjd)
50 CelestialBody (48.33130, 3.2458700E-5,
52 29.12410, 1.0144400E-5,
55 168.6562, 4.09233443680)
58 /*************************************************************************
59 * void Mercury::updatePosition(double mjd, Star *ourSun)
61 * calculates the current position of Mercury, by calling the base class,
62 * CelestialBody::updatePosition(); The current magnitude is calculated using
63 * a Mercury specific equation
64 *************************************************************************/
65 void Mercury::updatePosition(double mjd, Star *ourSun)
67 CelestialBody::updatePosition(mjd, ourSun);
68 magnitude = -0.36 + 5*log10( r*R ) + 0.027 * FV + 2.2E-13 * pow(FV, 6);