Index: source/prt_header.cpp
===================================================================
--- source/prt_header.cpp	(revision 9455)
+++ source/prt_header.cpp	(working copy)
@@ -243,13 +243,19 @@
 	/* magnitudes */
 	if( radius.lgRadiusKnown )
 	{
-		solar = log10(continuum.TotalLumin) + radius.pirsq - 33.5828;
-		absbol = 4.75 - 2.5*solar;
+		solar = absbol= -38.;
+		if( continuum.TotalLumin> SMALLFLOAT )
+		{
+			solar = log10(continuum.TotalLumin) + radius.pirsq - 33.5828;
+			absbol = 4.75 - 2.5*solar;
+		}
 
 		/* absv = 4.79 - 2.5 * (LOG10(MAX(1e-30,continuum.fluxv)) + pirsq - 18.742 -
 		 *  1  0.016)
 		 * allen 76, page 197 */
-		absv = -2.5*(log10(MAX2(1e-30,continuum.fluxv)) + radius.pirsq - 20.654202);
+		absv = -38.;
+		if( continuum.fluxv>SMALLFLOAT )
+			absv = -2.5*(log10(MAX2(1e-30,continuum.fluxv)) + radius.pirsq - 20.654202);
 
 		/* >>chng 97 mar 18, following branch so zero returned when no radiation at all */
 		if( continuum.fbeta > 0. )
Index: source
===================================================================
--- source	(revision 9455)
+++ source	(working copy)

Property changes on: source
___________________________________________________________________
Modified: svn:mergeinfo
   Merged /trunk/source:r9455
Index: .
===================================================================
--- .	(revision 9455)
+++ .	(working copy)

Property changes on: .
___________________________________________________________________
Modified: svn:mergeinfo
   Merged /trunk:r9455