diff --git a/js/blackbody-spectrum/model/BlackbodySpectrumModel.js b/js/blackbody-spectrum/model/BlackbodySpectrumModel.js
index ff23e4c..b09ab4b 100644
--- a/js/blackbody-spectrum/model/BlackbodySpectrumModel.js
+++ b/js/blackbody-spectrum/model/BlackbodySpectrumModel.js
@@ -45,7 +45,7 @@ define( function( require ) {
 
     // @public {BlackbodyBodyModel} the main body for the simulation
     this.mainBody = new BlackbodyBodyModel(
-      BlackbodyConstants.earthTemperature,
+      BlackbodyConstants.sunTemperature,
       tandem.createTandem( 'blackbodyBodyModel' )
     );