diff --git a/src/resources/ui/chart-default.css b/src/resources/ui/chart-default.css
index abadf5f..fd56dbf 100644
--- a/src/resources/ui/chart-default.css
+++ b/src/resources/ui/chart-default.css
@@ -70,3 +70,9 @@ path.planet-symbol {
     fill: none;
     stroke: #000080;
 }
+
+line.aspect {
+    stroke-width: 1;
+    stroke: #000000;
+    stroke-dasharray: 20,10;
+}
diff --git a/src/resources/ui/chart-default.xsl b/src/resources/ui/chart-default.xsl
index 4913f5b..872ce18 100644
--- a/src/resources/ui/chart-default.xsl
+++ b/src/resources/ui/chart-default.xsl
@@ -643,7 +643,7 @@
                                 <xsl:variable name="x2" select="$r_aspect * math:cos($rad2)"/>
                                 <xsl:variable name="y2" select="$r_aspect * -math:sin($rad2)"/>
 
-                                <line style="stroke-width:1;stroke:#000000;stroke-dasharray:20,10">
+                                <line class="aspect">
                                     <xsl:attribute name="x1"><xsl:value-of select="$x1"/></xsl:attribute>
                                     <xsl:attribute name="y1"><xsl:value-of select="$y1"/></xsl:attribute>
                                     <xsl:attribute name="x2"><xsl:value-of select="$x2"/></xsl:attribute>