22 #include <libnova/ln_types.h>
void LIBNOVA_EXPORT ln_get_solar_geom_coords(double JD, struct ln_helio_posn *position)
Calculate solar geometric coordinates.
Definition: solar.c:39
void ln_get_venus_rect_helio(double JD, struct ln_rect_posn *position)
Calculate Venus rectangular heliocentric coordinates.
Definition: venus.c:2122
double ln_get_venus_earth_dist(double JD)
Calculate the distance between Venus and the Earth.
Definition: venus.c:1967
double ln_get_venus_disk(double JD)
Calculate the illuminated fraction of Venus disk.
Definition: venus.c:2043
void ln_get_venus_equ_coords(double JD, struct ln_equ_posn *position)
Calculate Venus equatorial coordinates.
Definition: venus.c:1847
double Z
Definition: ln_types.h:241
Rise, Set and Transit times.
Definition: ln_types.h:318
double X
Definition: ln_types.h:239
double ra
Definition: ln_types.h:172
void ln_get_venus_helio_coords(double JD, struct ln_helio_posn *position)
Calculate Venus heliocentric coordinates.
Definition: venus.c:1893
double ln_get_earth_solar_dist(double JD)
Calculate the distance between Earth and the Sun.
Definition: earth.c:2772
double ln_get_venus_sdiam(double JD)
Calculate the semidiameter of Venus in arc seconds.
Definition: venus.c:2106
Heliocentric position.
Definition: ln_types.h:217
double LIBNOVA_EXPORT ln_range_degrees(double angle)
puts a large angle in the correct range 0 - 360 degrees
Definition: utility.c:234
int ln_get_venus_rst(double JD, struct ln_lnlat_posn *observer, struct ln_rst_time *rst)
Calculate the time of rise, set and transit for Venus.
Definition: venus.c:2093
double ln_get_venus_solar_dist(double JD)
Calculate the distance between Venus and the Sun.
Definition: venus.c:2000
double R
Definition: ln_types.h:220
double ln_get_venus_magnitude(double JD)
Calculate the visible magnitude of Venus.
Definition: venus.c:2018
double Y
Definition: ln_types.h:240
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
double B
Definition: ln_types.h:219
double LIBNOVA_EXPORT ln_rad_to_deg(double radians)
radians to degrees
Definition: utility.c:84
double ln_get_venus_phase(double JD)
Calculate the phase angle of Venus.
Definition: venus.c:2065
double L
Definition: ln_types.h:218
Ecliptical (or celestial) Longitude and Latitude.
Definition: ln_types.h:201
Equatorial Coordinates.
Definition: ln_types.h:171
double dec
Definition: ln_types.h:173
void ln_get_earth_helio_coords(double JD, struct ln_helio_posn *position)
Calculate Earth's heliocentric coordinates.
Definition: earth.c:2699
int LIBNOVA_EXPORT ln_get_body_rst_horizon(double JD, struct ln_lnlat_posn *observer, void(*get_equ_body_coords)(double, struct ln_equ_posn *), double horizon, struct ln_rst_time *rst)
Calculate the time of rise, set and transit for an object a body, usually Sun, a planet or Moon.
Definition: rise_set.c:275
Rectangular coordinates.
Definition: ln_types.h:238