palMap
palMap
- Convert star RA,Dec from mean place to geocentric apparent
- Description:
- Convert star RA,Dec from mean place to geocentric apparent.
- Invocation:
- void palMap( double rm, double dm, double pr, double pd,
double px, double rv, double eq, double date,
double
ra, double
da );
- Arguments:
-
-
rm = double (Given)
-
Mean RA (radians)
-
dm = double (Given)
-
Mean declination (radians)
-
pr = double (Given)
-
RA proper motion, changes per Julian year (radians)
-
pd = double (Given)
-
Dec proper motion, changes per Julian year (radians)
-
px = double (Given)
-
Parallax (arcsec)
-
rv = double (Given)
-
Radial velocity (km/s,
ve if receding)
-
eq = double (Given)
-
Epoch and equinox of star data (Julian)
-
date = double (Given)
-
TDB for apparent place (JD-2400000.5)
-
ra = double
(Returned)
-
Apparent RA (radians)
-
dec = double
(Returned)
-
Apparent dec (radians)
- Notes:
- Calls palMappa and palMapqk
- The reference systems and timescales used are IAU 2006.