You are as qualified as I:  as long as they are backed with a reference, anyone can create the graphic.  You probably can do the actual job better than me though.  I'll try and dig up the Icarus article that seems to be at the bottom of all of this.  It requires a trip to the super-secret eyes-only access astronomy library, at the top of a very tall tower, carefully guarded by vicious gargoyles.  But I've done it before...