Glen D. Riley Observatory is an astronomical observatory owned and operated by Naperville Astronomical Association. It was founded 1973 and located in Naperville, Illinois (US). Partnered with the DuPage Valley Observatory, which is equipped with a custom 12.5" astrograph for video imaging; together, they make up the association's "Astronomy Education Center". The facility is used both by the organization's members and for extensive public outreach.

Glen D. Riley Observatory

Glen D. Riley and DuPage Valley Observatories
Organization	Naperville Astronomical Association
Location	Naperville, Illinois, US
Coordinates	41°42′03″N 88°09′32″W / 41.7007°N 88.1588°W / 41.7007; -88.1588
Altitude	197 meters (647 feet)
Website	stargazing.net/naa/gdro.htm
Telescopes
"Abrahamian/Carhart" Telescope 16 inch reflector
Location of Glen D. Riley Observatory
[edit on Wikidata]