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Author (up) Garstang, R. H. url  openurl
  Title Light Pollution at Mount Wilson and at Palomar in 1931-32 Type Journal Article
  Year 2002 Publication The Observatory Abbreviated Journal  
  Volume 122 Issue Pages  
  Keywords Skyglow  
  Abstract I present a short summary of an unpublished letter by Joel Stebbins on light pollution at Mount Wilson Observatory and on Palmar Mountain in 1931-32. I analyzed his results and show that the light emission per capita in 1932 – o was about 3*1*10^17 photons s^-1 in the blue region, equivalent to about 220 lumens per head in the visual region. These my be compared with about 1*4*10^18 photons s^-1 in the blue region and about 1000 lumens per head in the visual region for California cities in 1970.  
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  Area Expedition Conference  
  Notes Approved no  
  Call Number IDA @ intern @ Serial 2622  
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