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15.5.579 starpv

starpv(ra, dec, pmr, pmd, px, rv)

[SOFA] Converts star catalog coordinates to a position-velocity matrix. The input parameters are right ascension ra (radians), declination dec (radians), right ascension proper motion pmr (rad/a), declination proper motion pmd (rad/a), parallax px (arcsec), and radial velocity rv (km/s receding). All input parameters must have the same dimensions. The result gets those same dimension with extra dimensions equal to 2 and 3 prefixed. If the results are pv, then pv(0,*,/all) is the position in AU, and pv(1, *, /all) is the velocity in AU/day.

See also: Astronomical Coordinate Calculations