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Astronomical Applications Department, U.S. Naval Observatory - novas c 2 doc (Page 11)

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Astronomical Applications Department, U.S. Naval Observatory - novas c 2 doc
= type of body
= 0 ... major planet, Sun, or Moon
= 1 ... minor planet
= body number
For 'type' = 0: Mercury = 1, ..., Pluto = 9, Sun = 10, Moon = 11
For 'type' = 1: minor planet number
= name of the body (limited to 99 characters)
3.3.2 Structure
contains data for the observer's location. The atmospheric
parameters are used only by the refraction function (refract) called from function
equ2hor. Parameters can be added to this structure if a more sophisticated refraction
model is substituted.
typedef struct
double latitude;
double longitude;
double height;
double temperature;
double pressure;
} site_info;
= geodetic latitude in degrees; north positive.
= geodetic longitude in degrees; east positive.
= height of the observer (meters).
= temperature (Celsius).
= atmospheric pressure (millibars)
3.3.3 Structure
contains the astrometric catalog data for a star; equator and
equinox and units will depend on the catalog. While this structure can be used as a
generic container for catalog data, all high-level NOVAS-C functions require J2000.0
catalog data with FK5-type units (shown in square brackets below).
typedef struct
char catalog[4];
char starname[51];
long int starnumber;
double ra;
double dec;
double promora;
double promodec;
double parallax;
double radialvelocity;
} cat_entry;

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