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Astronomical Phenomena

• Edward Aguado, Ph.D., Professor
  Department of Geography, San Diego State University
  5500 Campanile Drive
  San Diego, CA 92182-4493
  619-594-5930 Fax: 619-594-4938
  
  
• Patrick McCarthy, President
  Astronomical Facts
  P.O. Box 87672
  Montgomery Village, MD 20886-7672
  202-486-0034 Fax: