NASA Photo ID: STS039-25-006       File Name: 10064169.jpg
  Film Type: 35mm                    Date Taken: 05/06/91
  Title: Aurora Australis, Spiked, Sinuous Green Airglow
  Description:
  This distant view of the Aurora Australis or Southern Lights (location 
  unknown) shows a spiked and sinuous band of green airglow above the Earth 
  Limb.  Calculated to be in the 80 - 120 km altitude region, auroral
  activity  is due to exitation of atomic oxygen in the upper atmosphere by
  radiation  from the van Allen Radiation Belts and is most common above the
  65 degree  north and south latitude range during the spring and fall of the
  year.                  
  Subject terms:
  AURORAS                                 
  EARTH LIMB                              
  EARTH OBSERVATIONS (FROM SPACE)         
  STS-39                                  
  

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