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Observatories in IL

Glen D. Riley Observatory (GDRO)

Glen D. Riley Observatory (GDRO) is located in Naperville, IL. Not all observatories are open to the public - please contact them beforehand for any viewing times and outreach programs.

      1. Name:
      2. Glen D. Riley Observatory (GDRO)
      1. Address:
      2. Naperville Springbrook Water Reclamation plant
      1. Site/City:
      2. Naperville
      1. State:
      2. IL
      1. Telescope:
      2. 12.5-inch, 10-inch reflectors

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