22 #include <libnova/ln_types.h>
24 #define LN_SOLAR_STANDART_HORIZON -0.8333
25 #define LN_SOLAR_CIVIL_HORIZON -6.0
26 #define LN_SOLAR_NAUTIC_HORIZON -12.0
27 #define LN_SOLAR_ASTRONOMICAL_HORIZON -18.0
void ln_get_solar_geom_coords(double JD, struct ln_helio_posn *position)
Calculate solar geometric coordinates.
Definition: solar.c:39
double Z
Definition: ln_types.h:241
double lng
Definition: ln_types.h:202
Rise, Set and Transit times.
Definition: ln_types.h:318
double X
Definition: ln_types.h:239
double ln_get_earth_solar_dist(double JD)
Calculate the distance between Earth and the Sun.
Definition: earth.c:2772
int ln_get_solar_rst(double JD, struct ln_lnlat_posn *observer, struct ln_rst_time *rst)
Calculate the time of rise, set and transit for the Sun.
Definition: solar.c:139
void ln_get_solar_geo_coords(double JD, struct ln_rect_posn *position)
Calculate geocentric coordinates (rectangular)
Definition: solar.c:116
Heliocentric position.
Definition: ln_types.h:217
void ln_get_solar_equ_coords(double JD, struct ln_equ_posn *position)
Calculate apparent equatorial coordinates.
Definition: solar.c:56
void LIBNOVA_EXPORT ln_get_nutation(double JD, struct ln_nutation *nutation)
Calculate nutation.
Definition: nutation.c:189
double LIBNOVA_EXPORT ln_range_degrees(double angle)
puts a large angle in the correct range 0 - 360 degrees
Definition: utility.c:234
void ln_get_solar_ecl_coords(double JD, struct ln_lnlat_posn *position)
Calculate apparent ecliptical coordinates.
Definition: solar.c:87
double lat
Definition: ln_types.h:203
double R
Definition: ln_types.h:220
double longitude
Definition: ln_types.h:334
double Y
Definition: ln_types.h:240
Nutation in longitude, ecliptic and obliquity.
Definition: ln_types.h:333
int ln_get_solar_rst_horizon(double JD, struct ln_lnlat_posn *observer, double horizon, struct ln_rst_time *rst)
Return solar rise/set time over local horizon (specified in degrees).
Definition: solar.c:129
double B
Definition: ln_types.h:219
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
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
double ln_get_solar_sdiam(double JD)
Calculate the semidiameter of the Sun in arc seconds.
Definition: solar.c:151
Rectangular coordinates.
Definition: ln_types.h:238