Index: trunk/ppSim/src/ppSimMakeStarGrid.c
===================================================================
--- trunk/ppSim/src/ppSimMakeStarGrid.c	(revision 26900)
+++ trunk/ppSim/src/ppSimMakeStarGrid.c	(revision 41173)
@@ -22,5 +22,5 @@
     float zp           = psMetadataLookupF32(&status, recipe, "ZEROPOINT"); // Photometric zero point
     float seeing       = psMetadataLookupF32(&status, recipe, "SEEING"); // Seeing SIGMA (pixels)
-    float scale        = psMetadataLookupF32(&status, recipe, "PIXEL.SCALE") * M_PI / 3600.0 / 180.0; // Plate scale (radians/pixel)
+    float scale        = psMetadataLookupF32(&status, recipe, "PIXEL.SCALE"); // Plate scale (arcsec/pixel)
 
     if (isnan(expTime))  ESCAPE("EXPTIME is not defined");