NASA Photo ID: STS056(E)004        File Name: 10072676.jpg
  Film Type: 4x5 BW                  Date Taken: 04/17/93
  Title: STS-56 ESC Earth observation of Limnos Island in the Aegean Sea
  Description:
  STS-56 electronic still camera (ESC) Earth observation image taken aboard 
  Discovery, Orbiter Vehicle (OV) 103, shows Limnos Island in the Aegean Sea. 
  The image was recorded with a 300mm lens 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.  In this observation, the center 
  coordinates are 39.9 degrees north latitude and 25.3 degrees east
  longitude.  The camera was in shutter priority mode with a 1/500-second
  shutter speed  and -2/3 exposure compensation.  Digital file name is
  ESC03037.IMG.           
  Subject terms:
  AIRPORTS                                
  DISCOVERY (ORBITER)                     
  EARTH OBSERVATIONS (FROM SPACE)         
  ELECTRO-OPTICAL PHOTOGRAPHY             
  ELECTRONIC STILL CAMERA                 
  GREECE                                  
  ISLANDS                                 
  MEDITERRANEAN SEA                       
  RUNWAYS                                 
  SEAS                                    
  STS-56                                  
  

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