palAmpqk palAmpqk - Convert star RA,Dec from geocentric apparent to mean place

Description:
Convert star RA,Dec from geocentric apparent to mean place. The "mean" coordinate system is in fact close to ICRS. Use of this function is appropriate when efficiency is important and where many star positions are all to be transformed for one epoch and equinox. The star-independent parameters can be obtained by calling the palMappa function.

Invocation:
void palAmpqk ( double ra, double da, double amprms[21], double $*$rm, double $*$dm )

Arguments:

ra = double (Given)
Apparent RA (radians).
da = double (Given)
Apparent Dec (radians).
amprms = double[21] (Given)
Star-independent mean-to-apparent parameters (see palMappa): (0) time interval for proper motion (Julian years) (1-3) barycentric position of the Earth (AU) (4-6) not used (7) not used (8-10) abv: barycentric Earth velocity in units of c (11) sqrt(1-v$*$v) where v=modulus(abv) (12-20) precession/nutation (3,3) matrix
rm = double (Returned)
Mean RA (radians).
dm = double (Returned)
Mean Dec (radians).