NASA Photo ID: STS056(E)007        File Name: 10072679.jpg
  Film Type: 4x5 BW                  Date Taken: 04/17/93
  Title: STS-56 ESC Earth observation of Chicago, Illinois at night
  Description:
  STS-56 electronic still camera (ESC) Earth observation image shows Chicago, 
  Illinois with part of the shoreline of Lake Michigan at night as
  photographed  during orbit 33 from Discovery, Orbiter Vehicle (OV) 103. 
  The image was  recorded with an image intensifier on the Hand-held,
  Earth-oriented,  Real-time, Cooperative, User-friendly, Location-targeting
  and Environmental  System (HERCULES).  HERCULES is a device that makes it
  simple for shuttle  crewmembers to take pictures of Earth as they merely
  point a modified 35mm  camera and shoot any interesting feature, whose
  latitude and longitude are  automatically determined in real-time.  Center
  coordinates of this frame are  41.8 degrees north latitude and 87.7 degrees
  west longitude.  The image was  acquired at 1/60-second shutter speed and
  -2/3 exposure compensation.   Digital file name is ESC03031.IMG.          
  
  Subject terms:
  DARKNESS                                
  DISCOVERY (ORBITER)                     
  EARTH OBSERVATIONS (FROM SPACE)         
  ELECTRO-OPTICAL PHOTOGRAPHY             
  ELECTRONIC STILL CAMERA                 
  ILLINOIS                                
  LAKE MICHIGAN                           
  NIGHT                                   
  STS-56                                  
  

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