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.


Back to All Events

NSA March Meeting

  • Arlington Heights Memorial Library 500 N. Dunton Arlington Heights, Il 60004 USA (map)

Larry Bartoszek joins us from the Chicago Society for Space Studies for a program about astronomy and the periodic table.  Larry will start with the origin of atoms.  He'll show how electron shell structure is related to the emission of light of varying wavelengths and how the light from distant atoms in galaxies changes as they recede.  We'll see how spectroscopy leads to the expansion of the universe and its acceleration, now thought to be caused by Dark Energy.  All of this comes from an understanding of the unique “fingerprints” of the light emitted by atoms.

Earlier Event: February 22
NSA February Meeting
Later Event: April 12
April NSA Meeting