- ln_get_equ_pm
void ln_get_equ_pm(ln_equ_posn mean_position, ln_equ_posn proper_motion, double JD, ln_equ_posn position)
Undocumented in source. Be warned that the author may not have intended to support it.
- ln_get_equ_pm_epoch
void ln_get_equ_pm_epoch(ln_equ_posn mean_position, ln_equ_posn proper_motion, double JD, double epoch_JD, ln_equ_posn position)
Undocumented in source. Be warned that the author may not have intended to support it.