wmmoonclock/src/CalcEphem.h

   1 #include <stdio.h>
   2 #include <math.h>
   3
   4 #define DegPerRad       57.29577951308232087680
   5 #define RadPerDeg        0.01745329251994329576
   6 #define FALSE 0
   7 #define TRUE  1
   8
   9
  10 typedef struct Vector {
  11     double x;
  12     double y;
  13     double z;
  14 } Vector;
  15
  16
  17 typedef struct Position {
  18     double x;
  19     double y;
  20     double z;
  21 } Position;
  22
  23
  24 typedef struct CTrans {
  25     double UT;                  /* Universal Time (in decimal hours) */
  26     int    year;                /* 2 digit year */
  27     int    month;               /* 2 digit month of year */
  28     int    day;                 /* 2 digit day of month */
  29     int    doy;                 /* 3 digit Day Of Year */
  30     int    dow;                 /* 1 digit day of week */
  31     char   dowstr[80];          /* Day of week String (e.g. "Sun") */
  32     double gmst;                /* Greenwich Mean Sidereal Time (in radians) */
  33     double eccentricity;        /* Eccentricity of Earth-Sun orbit */
  34     double epsilon;             /* Obliquity of the ecliptic (in radians) */
  35     double lambda_sun;          /* Ecliptic Long. of Sun (in radians) */
  36     double earth_sun_dist;      /* Earth-Sun distance (in units of earth radii) */
  37     double RA_sun;              /* Right Ascention of Sun (in degrees) */
  38     double DEC_sun;             /* Declination of Sun (in degrees) */
  39     Vector Sun;                 /* direction of Sun in GEI system (unit vector) */
  40     Vector EcPole;              /* direction of Ecliptic Pole in GEI system (unit vector) */
  41     double psi;                 /* Geodipole tilt angle (in radians) */
  42     double Dipole_Gcolat;       /* Geographic colat of centered dipole axis (deg.) */
  43     double Dipole_Glon;         /* Geographic long. of centered dipole axis (deg.) */
  44
  45     double RA_moon;             /* Right Ascention of Moon (in degrees) */
  46     double DEC_moon;            /* Declination of Moon (in degrees) */
  47     double MoonPhase;           /* The Phase of the Moon (in days) */
  48     double MoonAge;             /* Age of Moon in Days */
  49     double EarthMoonDistance;   /* Distance between the Earth and Moon (in earth-radii) */
  50     double Glat;                /* Geographic Latitude of Observer */
  51     double Glon;                /* Geographic Longitude of Observer */
  52     double h_moon;              /* Altitude of Moon (in degrees) */
  53     double A_moon;              /* Azimuth of Moon (in degrees) */
  54     int    Visible;             /* Wether or not moon is above horizon */
  55 } CTrans;
  56
  57