Description:
Convert
star RA,Dec from geocentric apparent to mean place. The mean coordinate system is close to ICRS. See
palAmpqk for details.
Invocation
void palAmp ( double ra, double da, double date, double eq,
double ∗rm,
double ∗dm
);
Arguments
ra = double (Given)
Apparent RA (radians)
dec = double
(Given)
Apparent Dec (radians)
date = double (Given)
TDB for apparent place
(JD-2400000.5)
eq = double (Given)
Equinox: Julian epoch of mean place.
rm = double
∗ (Returned)
Mean RA
(radians)
dm = double ∗
(Returned)
Mean Dec (radians)
Notes:
Copyright © 2012 Science and Technology Facilities Council.
Copyright © 2014 Cornell University.
Copyright © 2015 Tim Jenness