venus.h

/*
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2 of the License, or (at your option) any later version.
 *
 *  This library 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
 *  Lesser 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *  
 *  Copyright (C) 2000 - 2005 Liam Girdwood  
 */

#ifndef _LN_VENUS_H
#define _LN_VENUS_H

#include <libnova/ln_types.h>

#ifdef __cplusplus
extern "C" {
#endif

double LIBNOVA_EXPORT ln_get_venus_sdiam(double JD);

int LIBNOVA_EXPORT ln_get_venus_rst(double JD, struct ln_lnlat_posn *observer,
        struct ln_rst_time *rst);

/* Chapter 31 Pg 206-207 Equ 31.1 31.2 , 31.3 using VSOP 87 */
void LIBNOVA_EXPORT ln_get_venus_helio_coords(double JD,
        struct ln_helio_posn *position);

/* Chapter 31 Pg 206-207 Equ 31.1 31.2 , 31.3 using VSOP 87 */
void LIBNOVA_EXPORT ln_get_venus_equ_coords(double JD,
        struct ln_equ_posn *position);

/* Chapter ?? */
double LIBNOVA_EXPORT ln_get_venus_earth_dist(double JD);
        
/* Chapter ?? */
double LIBNOVA_EXPORT ln_get_venus_solar_dist(double JD);
        
/* Chapter ?? */
double LIBNOVA_EXPORT ln_get_venus_magnitude(double JD);

/* Chapter 41 */
double LIBNOVA_EXPORT ln_get_venus_disk(double JD);

/* Chapter 41 */
double LIBNOVA_EXPORT ln_get_venus_phase(double JD);

void LIBNOVA_EXPORT ln_get_venus_rect_helio(double JD,
        struct ln_rect_posn *position);

#ifdef __cplusplus
};
#endif

#endif