Obj. Aperture: 13 pixels                                                      
    This aperture works well on all stars except for guide5.                  
    Its radius is in excess of 20 pixels, consequently,                       
    its instr. mag. measurements may be off.                                  
                                                                              
Inner Annulus: 30 pixels                                                      
                                                                              
Outer Annulus: 60 pixels                                                      
                                                                              
                                                                              
Frame 70: For this frame, Tempel approaches very closely to guide4.           
          Photometry results will likely be contaminated by interference.     
                                                                              
Frames 89-93: Could not locate Tempel on the frames,                          
              so no measurements were made.