rvKmsToMasyr( rvKms, plxMas )
The output is calculated as rvKms * plxMas / AU_YRKMS, where AU_YRKMS=4.740470446 is one Astronomical Unit in km.yr/sec.
rvKms * plxMas / AU_YRKMS
AU_YRKMS=4.740470446
rvKms
plxMas
double rvKmsToMasyr(double, double)