66 lines
2.4 KiB
C++
66 lines
2.4 KiB
C++
/**************************************************************************
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* mars.cxx
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* Written by Durk Talsma. Originally started October 1997, for distribution
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* with the FlightGear project. Version 2 was written in August and
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* September 1998. This code is based upon algorithms and data kindly
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* provided by Mr. Paul Schlyter. (pausch@saaf.se).
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $Id$
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**************************************************************************/
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#include <cmath>
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#include "mars.hxx"
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/*************************************************************************
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* Mars::Mars(double mjd)
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* Public constructor for class Mars
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* Argument: The current time.
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* the hard coded orbital elements for Mars are passed to
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* CelestialBody::CelestialBody();
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************************************************************************/
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Mars::Mars(double mjd) :
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CelestialBody(49.55740, 2.1108100E-5,
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1.8497, -1.78E-8,
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286.5016, 2.9296100E-5,
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1.5236880, 0.000000,
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0.093405, 2.516E-9,
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18.60210, 0.52402077660, mjd)
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{
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}
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Mars::Mars() :
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CelestialBody(49.55740, 2.1108100E-5,
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1.8497, -1.78E-8,
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286.5016, 2.9296100E-5,
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1.5236880, 0.000000,
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0.093405, 2.516E-9,
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18.60210, 0.52402077660)
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{
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}
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/*************************************************************************
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* void Mars::updatePosition(double mjd, Star *ourSun)
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*
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* calculates the current position of Mars, by calling the base class,
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* CelestialBody::updatePosition(); The current magnitude is calculated using
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* a Mars specific equation
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*************************************************************************/
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void Mars::updatePosition(double mjd, Star *ourSun)
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{
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CelestialBody::updatePosition(mjd, ourSun);
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magnitude = -1.51 + 5*log10( r*R ) + 0.016 * FV;
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}
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