Function decFK5toFK4radians( raFK5, decFK5 )
- Description:
-
Converts a J2000.0 FK5 position to B1950.0 FK4 at an epoch of B1950.0
yielding Declination.
This assumes zero proper motion, parallax and radial velocity in
the FK5 frame.
- Parameters:
-
- raFK5 (floating point)
- right ascension in J2000.0 FK5 system (radians)
- decFK5 (floating point)
- declination in J2000.0 FK5 system (radians)
- Return Value (floating point):
- right ascension in the FK4 system (radians)
- Signature:
- double decFK5toFK4radians(double, double)