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vsop87.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_VSOP87_H
20 #define _LN_VSOP87_H
21
22 #include <libnova/ln_types.h>
23
24 #ifdef __cplusplus
25 extern "C" {
26 #endif
27
38 /* equation 31.3 Pg 207 */
39 /* JD Julian Day */
40 void LIBNOVA_EXPORT ln_vsop87_to_fk5 (struct ln_helio_posn * position, double JD);
41
42
43 struct ln_vsop
44 {
45 double A;
46 double B;
47 double C;
48 };
49
50
51 double LIBNOVA_EXPORT ln_calc_series (const struct ln_vsop * data, int terms, double t);
52
53 #ifdef __cplusplus
54 };
55 #endif
56
57 #endif
ln_vsop87_to_fk5
void LIBNOVA_EXPORT ln_vsop87_to_fk5(struct ln_helio_posn *position, double JD)
Transform from VSOP87 to FK5 reference system.
Definition: vsop87.c:49
ln_helio_posn
Heliocentric position.
Definition: ln_types.h:216
ln_vsop
Definition: vsop87.h:43