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Creating a SkyFrame

The SkyFrame constructor function is particularly simple and a SkyFrame with default attributes is created as follows:

      INCLUDE 'AST_PAR'
      INTEGER SKYFRAME, STATUS

      STATUS = 0

      ...

      SKYFRAME = AST_SKYFRAME( ' ', STATUS )

Such a SkyFrame would represent the default celestial coordinate system which, at present, is the FK5 (J2000.0) equatorial system.



next up previous
Next: Specifying a Particular Celestial Coordinate System
Up: Celestial Coordinate Systems (SkyFrames)
Previous: The SkyFrame Model

AST A Library for Handling World Coordinate Systems in Astronomy
Starlink User Note 210
R.F. Warren-Smith & D.S. Berry
30th April 2003
E-mail:ussc@star.rl.ac.uk

Copyright (C) 2003 Central Laboratory of the Research Councils