palAddet palAddet - Add the E-terms to a pre IAU 1976 mean place

Description:
Add the E-terms (elliptic component of annual aberration) to a pre IAU 1976 mean place to conform to the old catalogue convention.

Invocation:
void palAddet ( double rm, double dm, double eq, double $*$rc, double $*$dc );

Arguments:

rm = double (Given)
RA without E-terms (radians)
dm = double (Given)
Dec without E-terms (radians)
eq = double (Given)
Besselian epoch of mean equator and equinox
rc = double $*$ (Returned)
RA with E-terms included (radians)
dc = double $*$ (Returned)
Dec with E-terms included (radians)

Notes:
Most star positions from pre-1984 optical catalogues (or derived from astrometry using such stars) embody the E-terms. If it is necessary to convert a formal mean place (for example a pulsar timing position) to one consistent with such a star catalogue, then the RA,Dec should be adjusted using this routine.
See Also
Explanatory Supplement to the Astronomical Ephemeris, section 2D, page 48.