Index: trunk/doc/pslib/psLibSDRS_Astrom.tex
===================================================================
--- trunk/doc/pslib/psLibSDRS_Astrom.tex	(revision 3176)
+++ trunk/doc/pslib/psLibSDRS_Astrom.tex	(revision 3181)
@@ -716,10 +716,4 @@
 image to the tangent plane); and the projection.
 
-The FITS WCS standard is described in Calabretta \& Greisen, A\&A,
-2002, 395, 1077.  An extension to the standard, the TNX projection, is
-described at \url{http://iraf.noao.edu/projects/ccdmosaic/tnx.html}.
-This extension is in widespread use and must also be supported for
-both reading and writing.
-
 \begin{verbatim}
 bool psAstrometryReadWCS(psPlaneTransform **transform, // Output transformation
@@ -729,5 +723,7 @@
 bool psAstrometryWriteWCS(psMetadata *header, // Output FITS header
                           psPlaneTransform *transform, // Input transformation
-		          psProjection *projection // Input projection
+		          psProjection *projection, // Input projection
+			  double color, // Mean color to use
+			  double magnitude, // Mean magnitude to use
                           );
 bool psAstrometrySimplify(psPlaneTransform **transform, // Output transformation