libnova v 0.15.0

heliocentric_time.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) 2009 Petr Kubanek
17 */
18
19 #ifndef _LN_HELIOCENTRIC_TIME_H
20 #define _LN_HELIOCENTRIC_TIME_H
21
22 #include <libnova/ln_types.h>
23
24 #ifdef __cplusplus
25 extern "C" {
26 #endif
27
37 double LIBNOVA_EXPORT ln_get_heliocentric_time_diff (double JD, struct ln_equ_posn *object);
38
39 #ifdef __cplusplus
40 };
41 #endif
42
43 #endif
ln_get_heliocentric_time_diff
double ln_get_heliocentric_time_diff(double JD, struct ln_equ_posn *object)
Calculate approximate heliocentric (barycentric) time correction for given date and object.
Definition: heliocentric_time.c:35
ln_equ_posn::ra
double ra
Definition: ln_types.h:172
ln_nutation::ecliptic
double ecliptic
Definition: ln_types.h:336
ln_helio_posn
Heliocentric position.
Definition: ln_types.h:217
ln_get_nutation
void LIBNOVA_EXPORT ln_get_nutation(double JD, struct ln_nutation *nutation)
Calculate nutation.
Definition: nutation.c:189
ln_deg_to_rad
double LIBNOVA_EXPORT ln_deg_to_rad(double degrees)
degrees to radians
Definition: utility.c:90
ln_range_degrees
double LIBNOVA_EXPORT ln_range_degrees(double angle)
puts a large angle in the correct range 0 - 360 degrees
Definition: utility.c:234
ln_helio_posn::R
double R
Definition: ln_types.h:220
ln_nutation
Nutation in longitude, ecliptic and obliquity.
Definition: ln_types.h:333
ln_helio_posn::L
double L
Definition: ln_types.h:218
ln_equ_posn
Equatorial Coordinates.
Definition: ln_types.h:171
ln_equ_posn::dec
double dec
Definition: ln_types.h:173
ln_get_earth_helio_coords
void ln_get_earth_helio_coords(double JD, struct ln_helio_posn *position)
Calculate Earth's heliocentric coordinates.
Definition: earth.c:2699