libnova v 0.15.0
proper_motion.h
1/*
2 * This library is free software; you can redistribute it and/or
3 * modify it under the terms of the GNU Lesser General Public
4 * License as published by the Free Software Foundation; either
5 * version 2 of the License, or (at your option) any later version.
6 *
7 * This library is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
10 * Lesser General Public License for more details.
11 *
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
15 *
16 * Copyright (C) 2000 - 2005 Liam Girdwood
17 */
18
19#ifndef _LN_PROPER_MOTION_H
20#define _LN_PROPER_MOTION_H
21
22#include <libnova/ln_types.h>
23
24#ifdef __cplusplus
25extern "C" {
26#endif
27
39/* Equ 20.2, 20.3, 20.4 pg 126 */
40void LIBNOVA_EXPORT ln_get_equ_pm (struct ln_equ_posn * mean_position, struct ln_equ_posn * proper_motion, double JD, struct ln_equ_posn * position);
41
42
46/* Equ 20.2, 20.3, 20.4 pg 126
47*/
48void LIBNOVA_EXPORT ln_get_equ_pm_epoch (struct ln_equ_posn * mean_position, struct ln_equ_posn * proper_motion, double JD, double epoch_JD, struct ln_equ_posn * position);
49#ifdef __cplusplus
50};
51#endif
52
53#endif
void LIBNOVA_EXPORT ln_get_equ_pm(struct ln_equ_posn *mean_position, struct ln_equ_posn *proper_motion, double JD, struct ln_equ_posn *position)
Calculate a stars equatorial position wrt proper motion (J2000).
Definition: proper_motion.c:37
Equatorial Coordinates.
Definition: ln_types.h:171