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fk5hz, ra5, dec5, jdtdb, rah,
dech
[SOFA] Transforms an FK5 (J2000.0) star position (right ascension
ra5
in radians, declination dec5
in radians)
determined at TDB Julian Date jdtdb
into the system of
the Hipparcos catalog, assuming zero Hipparcos proper motion. The
returned coordinates in the Hipparcos system are right ascension
rah
and declination dech
, both measured in
radians. All input and output variables (must) have the same
dimensions.
See also: Astronomical Coordinate Calculations