Object Aperture: 13 pixels                                                    
 Tempel initially only occupied a small region (~15 pixels across),           
 but as the night went on, a larger aperture was required.                    
 Therefore I decided to simply keep it set at 13 all night                    
 (for continuity's sake).                                                     
                                                                              
Inner Annulus: 30 pixels                                                      
                                                                              
Outer Annulus: 60 pixels