NSA Club

Northwest Suburban Astronomers

Club Meetings: Meetings are on the Friday nearest the full moon each month.
Check our Events page for each month's meeting location.
Business Correspondence: The club's official mailing address for business correspondence is
PO Box 261, Dundee, IL 60118.

Our club is based in the northwestern suburbs of Chicago. With a wide range of interests, experience, and equipment, our membership is over 150, making us one of the largest astronomy clubs in the mid-west. Here you can find out about our public meetings, star parties, and the benefits of becoming a member. Thanks for visiting, and clear skies.


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NSA Public Observing at Marengo Ridge

  • Marengo Ridge Conservation Area 3100 Rte 23 Marengo USA (map)

The Northwest Suburban Astronomers (NSA), in cooperation with the McHenry County Conservation District, will be hosting a public star party on Saturday, April 27th, at Marengo Ridge Conservation Area, located at 3100 IL-23, just north of Marengo, Illinois. NSA members will be aiming their telescopes at the beautiful globular star clusters M3 and M13, the many galaxies of the Virgo Cluster, and numerous other objects as well.

Dress for evening and bring a flashlight covered with red plastic or cellophane (red light preserves everyone’s night vision) as well as insect repellent. Please plan to arrive by 7:45 ( sunset time is 7:44). You are welcome to bring your own telescope or binoculars. NSA members will be happy to provide guidance in their use. In the event of inclement weather the event will be cancelled. There is no cost to attend and no registration is required.

Earlier Event: April 12
April NSA Meeting
Later Event: May 17
May NSA Meeting