NASA Photo ID: STS039-23-036       File Name: 10064168.jpg
  Film Type: 35mm                    Date Taken: 05/06/91
  Title: Aurora Australis, Red Crown
  Description:
  This view of the Aurora Australis or Southern Lights (location unknown)
  shows  a spiked band of red airglow called a "Red Crown" 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                                  
  

NASA Home Page JSC Home Page Imagery Services Home PageSearch
For questions about Manned Spaceflight images, please contact:
JSC Office of Public Affairs
External Affairs Branch
Mail Code AP4
2101 NASA Road 1
Houston, TX 77058
Fax: (713) 483-2000